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/*
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* Stack-less Just-In-Time compiler
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*
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* Copyright 2009-2010 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification, are
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* permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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SLJIT_API_FUNC_ATTRIBUTE SLJIT_CONST char* sljit_get_platform_name()
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{
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#if (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7)
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return "arm-v7";
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#elif (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
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return "arm-v5";
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#else
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#error "Internal error: Unknown ARM architecture"
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#endif
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}
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/* Last register + 1. */
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#define TMP_REG1 (SLJIT_NO_REGISTERS + 1)
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#define TMP_REG2 (SLJIT_NO_REGISTERS + 2)
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#define TMP_REG3 (SLJIT_NO_REGISTERS + 3)
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#define TMP_PC (SLJIT_NO_REGISTERS + 4)
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#define TMP_FREG1 (SLJIT_FLOAT_REG4 + 1)
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#define TMP_FREG2 (SLJIT_FLOAT_REG4 + 2)
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/* In ARM instruction words.
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Cache lines are usually 32 byte aligned. */
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#define CONST_POOL_ALIGNMENT 8
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#define CONST_POOL_EMPTY 0xffffffff
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#define ALIGN_INSTRUCTION(ptr) \
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(sljit_uw*)(((sljit_uw)(ptr) + (CONST_POOL_ALIGNMENT * sizeof(sljit_uw)) - 1) & ~((CONST_POOL_ALIGNMENT * sizeof(sljit_uw)) - 1))
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#define MAX_DIFFERENCE(max_diff) \
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(((max_diff) / (int)sizeof(sljit_uw)) - (CONST_POOL_ALIGNMENT - 1))
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/* See sljit_emit_enter if you want to change them. */
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static SLJIT_CONST sljit_ub reg_map[SLJIT_NO_REGISTERS + 5] = {
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0, 0, 1, 2, 10, 11, 4, 5, 6, 7, 8, 13, 3, 12, 14, 15
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};
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#define RM(rm) (reg_map[rm])
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#define RD(rd) (reg_map[rd] << 12)
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#define RN(rn) (reg_map[rn] << 16)
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/* --------------------------------------------------------------------- */
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/* Instrucion forms */
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/* --------------------------------------------------------------------- */
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/* The instruction includes the AL condition.
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INST_NAME - CONDITIONAL remove this flag. */
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#define COND_MASK 0xf0000000
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#define CONDITIONAL 0xe0000000
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#define PUSH_POOL 0xff000000
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/* DP - Data Processing instruction (use with EMIT_DATA_PROCESS_INS). */
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#define ADC_DP 0x5
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#define ADD_DP 0x4
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#define AND_DP 0x0
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#define B 0xea000000
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#define BIC_DP 0xe
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#define BL 0xeb000000
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#define BLX 0xe12fff30
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#define BX 0xe12fff10
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#define CLZ 0xe16f0f10
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#define CMP_DP 0xa
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#define DEBUGGER 0xe1200070
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#define EOR_DP 0x1
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#define MOV_DP 0xd
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#define MUL 0xe0000090
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#define MVN_DP 0xf
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#define NOP 0xe1a00000
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#define ORR_DP 0xc
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#define PUSH 0xe92d0000
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#define POP 0xe8bd0000
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#define RSB_DP 0x3
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#define RSC_DP 0x7
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#define SBC_DP 0x6
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#define SMULL 0xe0c00090
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#define SUB_DP 0x2
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#define VABS_F64 0xeeb00bc0
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#define VADD_F64 0xee300b00
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#define VCMP_F64 0xeeb40b40
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#define VDIV_F64 0xee800b00
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#define VMOV_F64 0xeeb00b40
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#define VMRS 0xeef1fa10
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#define VMUL_F64 0xee200b00
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#define VNEG_F64 0xeeb10b40
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#define VSTR 0xed000b00
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#define VSUB_F64 0xee300b40
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#if (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7)
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/* Arm v7 specific instructions. */
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#define MOVW 0xe3000000
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#define MOVT 0xe3400000
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#define SXTB 0xe6af0070
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#define SXTH 0xe6bf0070
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#define UXTB 0xe6ef0070
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#define UXTH 0xe6ff0070
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#endif
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#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
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static int push_cpool(struct sljit_compiler *compiler)
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{
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/* Pushing the constant pool into the instruction stream. */
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sljit_uw* inst;
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sljit_uw* cpool_ptr;
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sljit_uw* cpool_end;
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int i;
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/* The label could point the address after the constant pool. */
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if (compiler->last_label && compiler->last_label->size == compiler->size)
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compiler->last_label->size += compiler->cpool_fill + (CONST_POOL_ALIGNMENT - 1) + 1;
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SLJIT_ASSERT(compiler->cpool_fill > 0 && compiler->cpool_fill <= CPOOL_SIZE);
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inst = (sljit_uw*)ensure_buf(compiler, sizeof(sljit_uw));
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FAIL_IF(!inst);
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compiler->size++;
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*inst = 0xff000000 | compiler->cpool_fill;
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for (i = 0; i < CONST_POOL_ALIGNMENT - 1; i++) {
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inst = (sljit_uw*)ensure_buf(compiler, sizeof(sljit_uw));
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FAIL_IF(!inst);
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compiler->size++;
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*inst = 0;
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}
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cpool_ptr = compiler->cpool;
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cpool_end = cpool_ptr + compiler->cpool_fill;
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while (cpool_ptr < cpool_end) {
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inst = (sljit_uw*)ensure_buf(compiler, sizeof(sljit_uw));
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FAIL_IF(!inst);
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compiler->size++;
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*inst = *cpool_ptr++;
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}
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compiler->cpool_diff = CONST_POOL_EMPTY;
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compiler->cpool_fill = 0;
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return SLJIT_SUCCESS;
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}
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static int push_inst(struct sljit_compiler *compiler, sljit_uw inst)
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{
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sljit_uw* ptr;
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if (SLJIT_UNLIKELY(compiler->cpool_diff != CONST_POOL_EMPTY && compiler->size - compiler->cpool_diff >= MAX_DIFFERENCE(4092)))
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FAIL_IF(push_cpool(compiler));
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ptr = (sljit_uw*)ensure_buf(compiler, sizeof(sljit_uw));
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FAIL_IF(!ptr);
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compiler->size++;
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*ptr = inst;
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return SLJIT_SUCCESS;
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}
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static int push_inst_with_literal(struct sljit_compiler *compiler, sljit_uw inst, sljit_uw literal)
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{
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sljit_uw* ptr;
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sljit_uw cpool_index = CPOOL_SIZE;
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sljit_uw* cpool_ptr;
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sljit_uw* cpool_end;
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sljit_ub* cpool_unique_ptr;
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if (SLJIT_UNLIKELY(compiler->cpool_diff != CONST_POOL_EMPTY && compiler->size - compiler->cpool_diff >= MAX_DIFFERENCE(4092)))
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FAIL_IF(push_cpool(compiler));
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else if (compiler->cpool_fill > 0) {
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cpool_ptr = compiler->cpool;
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cpool_end = cpool_ptr + compiler->cpool_fill;
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cpool_unique_ptr = compiler->cpool_unique;
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do {
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if ((*cpool_ptr == literal) && !(*cpool_unique_ptr)) {
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cpool_index = cpool_ptr - compiler->cpool;
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break;
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}
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cpool_ptr++;
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cpool_unique_ptr++;
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} while (cpool_ptr < cpool_end);
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}
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if (cpool_index == CPOOL_SIZE) {
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/* Must allocate a new entry in the literal pool. */
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if (compiler->cpool_fill < CPOOL_SIZE) {
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cpool_index = compiler->cpool_fill;
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compiler->cpool_fill++;
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}
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else {
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FAIL_IF(push_cpool(compiler));
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cpool_index = 0;
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compiler->cpool_fill = 1;
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}
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}
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SLJIT_ASSERT((inst & 0xfff) == 0);
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ptr = (sljit_uw*)ensure_buf(compiler, sizeof(sljit_uw));
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FAIL_IF(!ptr);
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compiler->size++;
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*ptr = inst | cpool_index;
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compiler->cpool[cpool_index] = literal;
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compiler->cpool_unique[cpool_index] = 0;
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if (compiler->cpool_diff == CONST_POOL_EMPTY)
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compiler->cpool_diff = compiler->size;
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return SLJIT_SUCCESS;
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}
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static int push_inst_with_unique_literal(struct sljit_compiler *compiler, sljit_uw inst, sljit_uw literal)
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{
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sljit_uw* ptr;
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if (SLJIT_UNLIKELY((compiler->cpool_diff != CONST_POOL_EMPTY && compiler->size - compiler->cpool_diff >= MAX_DIFFERENCE(4092)) || compiler->cpool_fill >= CPOOL_SIZE))
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FAIL_IF(push_cpool(compiler));
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SLJIT_ASSERT(compiler->cpool_fill < CPOOL_SIZE && (inst & 0xfff) == 0);
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ptr = (sljit_uw*)ensure_buf(compiler, sizeof(sljit_uw));
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FAIL_IF(!ptr);
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compiler->size++;
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*ptr = inst | compiler->cpool_fill;
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compiler->cpool[compiler->cpool_fill] = literal;
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compiler->cpool_unique[compiler->cpool_fill] = 1;
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compiler->cpool_fill++;
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if (compiler->cpool_diff == CONST_POOL_EMPTY)
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compiler->cpool_diff = compiler->size;
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return SLJIT_SUCCESS;
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}
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static SLJIT_INLINE int prepare_blx(struct sljit_compiler *compiler)
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{
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/* Place for at least two instruction (doesn't matter whether the first has a literal). */
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if (SLJIT_UNLIKELY(compiler->cpool_diff != CONST_POOL_EMPTY && compiler->size - compiler->cpool_diff >= MAX_DIFFERENCE(4088)))
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return push_cpool(compiler);
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return SLJIT_SUCCESS;
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}
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static SLJIT_INLINE int emit_blx(struct sljit_compiler *compiler)
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{
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/* Must follow tightly the previous instruction (to be able to convert it to bl instruction). */
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SLJIT_ASSERT(compiler->cpool_diff == CONST_POOL_EMPTY || compiler->size - compiler->cpool_diff < MAX_DIFFERENCE(4092));
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return push_inst(compiler, BLX | RM(TMP_REG1));
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}
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static sljit_uw patch_pc_relative_loads(sljit_uw *last_pc_patch, sljit_uw *code_ptr, sljit_uw* const_pool, sljit_uw cpool_size)
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{
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sljit_uw diff;
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sljit_uw ind;
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sljit_uw counter = 0;
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sljit_uw* clear_const_pool = const_pool;
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sljit_uw* clear_const_pool_end = const_pool + cpool_size;
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SLJIT_ASSERT(const_pool - code_ptr <= CONST_POOL_ALIGNMENT);
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/* Set unused flag for all literals in the constant pool.
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I.e.: unused literals can belong to branches, which can be encoded as B or BL.
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We can "compress" the constant pool by discarding these literals. */
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while (clear_const_pool < clear_const_pool_end)
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*clear_const_pool++ = (sljit_uw)(-1);
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| 275 |
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| 276 |
while (last_pc_patch < code_ptr) {
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/* Data transfer instruction with Rn == r15. */
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| 278 |
if ((*last_pc_patch & 0x0c0f0000) == 0x040f0000) {
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diff = const_pool - last_pc_patch;
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ind = (*last_pc_patch) & 0xfff;
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| 281 |
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| 282 |
/* Must be a load instruction with immediate offset. */
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| 283 |
SLJIT_ASSERT(ind < cpool_size && !(*last_pc_patch & (1 << 25)) && (*last_pc_patch & (1 << 20)));
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if ((int)const_pool[ind] < 0) {
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const_pool[ind] = counter;
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ind = counter;
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counter++;
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}
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else
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ind = const_pool[ind];
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| 291 |
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| 292 |
SLJIT_ASSERT(diff >= 1);
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| 293 |
if (diff >= 2 || ind > 0) {
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diff = (diff + ind - 2) << 2;
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| 295 |
SLJIT_ASSERT(diff <= 0xfff);
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| 296 |
*last_pc_patch = (*last_pc_patch & ~0xfff) | diff;
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| 297 |
}
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| 298 |
else
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| 299 |
*last_pc_patch = (*last_pc_patch & ~(0xfff | (1 << 23))) | 0x004;
|
| 300 |
}
|
| 301 |
last_pc_patch++;
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| 302 |
}
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| 303 |
return counter;
|
| 304 |
}
|
| 305 |
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| 306 |
/* In some rare ocasions we may need future patches. The probability is close to 0 in practice. */
|
| 307 |
struct future_patch {
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| 308 |
struct future_patch* next;
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| 309 |
int index;
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| 310 |
int value;
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| 311 |
};
|
| 312 |
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| 313 |
static SLJIT_INLINE int resolve_const_pool_index(struct future_patch **first_patch, sljit_uw cpool_current_index, sljit_uw *cpool_start_address, sljit_uw *buf_ptr)
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| 314 |
{
|
| 315 |
int value;
|
| 316 |
struct future_patch *curr_patch, *prev_patch;
|
| 317 |
|
| 318 |
/* Using the values generated by patch_pc_relative_loads. */
|
| 319 |
if (!*first_patch)
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| 320 |
value = (int)cpool_start_address[cpool_current_index];
|
| 321 |
else {
|
| 322 |
curr_patch = *first_patch;
|
| 323 |
prev_patch = 0;
|
| 324 |
while (1) {
|
| 325 |
if (!curr_patch) {
|
| 326 |
value = (int)cpool_start_address[cpool_current_index];
|
| 327 |
break;
|
| 328 |
}
|
| 329 |
if ((sljit_uw)curr_patch->index == cpool_current_index) {
|
| 330 |
value = curr_patch->value;
|
| 331 |
if (prev_patch)
|
| 332 |
prev_patch->next = curr_patch->next;
|
| 333 |
else
|
| 334 |
*first_patch = curr_patch->next;
|
| 335 |
SLJIT_FREE(curr_patch);
|
| 336 |
break;
|
| 337 |
}
|
| 338 |
prev_patch = curr_patch;
|
| 339 |
curr_patch = curr_patch->next;
|
| 340 |
}
|
| 341 |
}
|
| 342 |
|
| 343 |
if (value >= 0) {
|
| 344 |
if ((sljit_uw)value > cpool_current_index) {
|
| 345 |
curr_patch = (struct future_patch*)SLJIT_MALLOC(sizeof(struct future_patch));
|
| 346 |
if (!curr_patch) {
|
| 347 |
while (*first_patch) {
|
| 348 |
curr_patch = *first_patch;
|
| 349 |
*first_patch = (*first_patch)->next;
|
| 350 |
SLJIT_FREE(curr_patch);
|
| 351 |
}
|
| 352 |
return SLJIT_ERR_ALLOC_FAILED;
|
| 353 |
}
|
| 354 |
curr_patch->next = *first_patch;
|
| 355 |
curr_patch->index = value;
|
| 356 |
curr_patch->value = cpool_start_address[value];
|
| 357 |
*first_patch = curr_patch;
|
| 358 |
}
|
| 359 |
cpool_start_address[value] = *buf_ptr;
|
| 360 |
}
|
| 361 |
return SLJIT_SUCCESS;
|
| 362 |
}
|
| 363 |
|
| 364 |
#else
|
| 365 |
|
| 366 |
static int push_inst(struct sljit_compiler *compiler, sljit_uw inst)
|
| 367 |
{
|
| 368 |
sljit_uw* ptr;
|
| 369 |
|
| 370 |
ptr = (sljit_uw*)ensure_buf(compiler, sizeof(sljit_uw));
|
| 371 |
FAIL_IF(!ptr);
|
| 372 |
compiler->size++;
|
| 373 |
*ptr = inst;
|
| 374 |
return SLJIT_SUCCESS;
|
| 375 |
}
|
| 376 |
|
| 377 |
static SLJIT_INLINE int emit_imm(struct sljit_compiler *compiler, int reg, sljit_w imm)
|
| 378 |
{
|
| 379 |
FAIL_IF(push_inst(compiler, MOVW | RD(reg) | ((imm << 4) & 0xf0000) | (imm & 0xfff)));
|
| 380 |
return push_inst(compiler, MOVT | RD(reg) | ((imm >> 12) & 0xf0000) | ((imm >> 16) & 0xfff));
|
| 381 |
}
|
| 382 |
|
| 383 |
#endif
|
| 384 |
|
| 385 |
static SLJIT_INLINE int detect_jump_type(struct sljit_jump *jump, sljit_uw *code_ptr, sljit_uw *code)
|
| 386 |
{
|
| 387 |
sljit_w diff;
|
| 388 |
|
| 389 |
if (jump->flags & SLJIT_REWRITABLE_JUMP)
|
| 390 |
return 0;
|
| 391 |
|
| 392 |
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
|
| 393 |
if (jump->flags & IS_BL)
|
| 394 |
code_ptr--;
|
| 395 |
|
| 396 |
if (jump->flags & JUMP_ADDR)
|
| 397 |
diff = ((sljit_w)jump->u.target - (sljit_w)(code_ptr + 2));
|
| 398 |
else {
|
| 399 |
SLJIT_ASSERT(jump->flags & JUMP_LABEL);
|
| 400 |
diff = ((sljit_w)(code + jump->u.label->size) - (sljit_w)(code_ptr + 2));
|
| 401 |
}
|
| 402 |
|
| 403 |
/* Branch to Thumb code has not been optimized yet. */
|
| 404 |
if (diff & 0x3)
|
| 405 |
return 0;
|
| 406 |
|
| 407 |
diff >>= 2;
|
| 408 |
if (jump->flags & IS_BL) {
|
| 409 |
if (diff <= 0x01ffffff && diff >= -0x02000000) {
|
| 410 |
*code_ptr = (BL - CONDITIONAL) | (*(code_ptr + 1) & COND_MASK);
|
| 411 |
jump->flags |= PATCH_B;
|
| 412 |
return 1;
|
| 413 |
}
|
| 414 |
}
|
| 415 |
else {
|
| 416 |
if (diff <= 0x01ffffff && diff >= -0x02000000) {
|
| 417 |
*code_ptr = (B - CONDITIONAL) | (*code_ptr & COND_MASK);
|
| 418 |
jump->flags |= PATCH_B;
|
| 419 |
}
|
| 420 |
}
|
| 421 |
#else
|
| 422 |
if (jump->flags & JUMP_ADDR)
|
| 423 |
diff = ((sljit_w)jump->u.target - (sljit_w)code_ptr);
|
| 424 |
else {
|
| 425 |
SLJIT_ASSERT(jump->flags & JUMP_LABEL);
|
| 426 |
diff = ((sljit_w)(code + jump->u.label->size) - (sljit_w)code_ptr);
|
| 427 |
}
|
| 428 |
|
| 429 |
/* Branch to Thumb code has not been optimized yet. */
|
| 430 |
if (diff & 0x3)
|
| 431 |
return 0;
|
| 432 |
|
| 433 |
diff >>= 2;
|
| 434 |
if (diff <= 0x01ffffff && diff >= -0x02000000) {
|
| 435 |
code_ptr -= 2;
|
| 436 |
*code_ptr = ((jump->flags & IS_BL) ? (BL - CONDITIONAL) : (B - CONDITIONAL)) | (code_ptr[2] & COND_MASK);
|
| 437 |
jump->flags |= PATCH_B;
|
| 438 |
return 1;
|
| 439 |
}
|
| 440 |
#endif
|
| 441 |
return 0;
|
| 442 |
}
|
| 443 |
|
| 444 |
static SLJIT_INLINE void inline_set_jump_addr(sljit_uw addr, sljit_uw new_addr, int flush)
|
| 445 |
{
|
| 446 |
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
|
| 447 |
sljit_uw *ptr = (sljit_uw*)addr;
|
| 448 |
sljit_uw *inst = (sljit_uw*)ptr[0];
|
| 449 |
sljit_uw mov_pc = ptr[1];
|
| 450 |
int bl = (mov_pc & 0x0000f000) != RD(TMP_PC);
|
| 451 |
sljit_w diff = (sljit_w)(((sljit_w)new_addr - (sljit_w)(inst + 2)) >> 2);
|
| 452 |
|
| 453 |
if (diff <= 0x7fffff && diff >= -0x800000) {
|
| 454 |
/* Turn to branch. */
|
| 455 |
if (!bl) {
|
| 456 |
inst[0] = (mov_pc & COND_MASK) | (B - CONDITIONAL) | (diff & 0xffffff);
|
| 457 |
if (flush) {
|
| 458 |
SLJIT_CACHE_FLUSH(inst, inst + 1);
|
| 459 |
}
|
| 460 |
} else {
|
| 461 |
inst[0] = (mov_pc & COND_MASK) | (BL - CONDITIONAL) | (diff & 0xffffff);
|
| 462 |
inst[1] = NOP;
|
| 463 |
if (flush) {
|
| 464 |
SLJIT_CACHE_FLUSH(inst, inst + 2);
|
| 465 |
}
|
| 466 |
}
|
| 467 |
} else {
|
| 468 |
/* Get the position of the constant. */
|
| 469 |
if (mov_pc & (1 << 23))
|
| 470 |
ptr = inst + ((mov_pc & 0xfff) >> 2) + 2;
|
| 471 |
else
|
| 472 |
ptr = inst + 1;
|
| 473 |
|
| 474 |
if (*inst != mov_pc) {
|
| 475 |
inst[0] = mov_pc;
|
| 476 |
if (!bl) {
|
| 477 |
if (flush) {
|
| 478 |
SLJIT_CACHE_FLUSH(inst, inst + 1);
|
| 479 |
}
|
| 480 |
} else {
|
| 481 |
inst[1] = BLX | RM(TMP_REG1);
|
| 482 |
if (flush) {
|
| 483 |
SLJIT_CACHE_FLUSH(inst, inst + 2);
|
| 484 |
}
|
| 485 |
}
|
| 486 |
}
|
| 487 |
*ptr = new_addr;
|
| 488 |
}
|
| 489 |
#else
|
| 490 |
sljit_uw *inst = (sljit_uw*)addr;
|
| 491 |
SLJIT_ASSERT((inst[0] & 0xfff00000) == MOVW && (inst[1] & 0xfff00000) == MOVT);
|
| 492 |
inst[0] = MOVW | (inst[0] & 0xf000) | ((new_addr << 4) & 0xf0000) | (new_addr & 0xfff);
|
| 493 |
inst[1] = MOVT | (inst[1] & 0xf000) | ((new_addr >> 12) & 0xf0000) | ((new_addr >> 16) & 0xfff);
|
| 494 |
if (flush) {
|
| 495 |
SLJIT_CACHE_FLUSH(inst, inst + 2);
|
| 496 |
}
|
| 497 |
#endif
|
| 498 |
}
|
| 499 |
|
| 500 |
static sljit_uw get_immediate(sljit_uw imm);
|
| 501 |
|
| 502 |
static SLJIT_INLINE void inline_set_const(sljit_uw addr, sljit_w new_constant, int flush)
|
| 503 |
{
|
| 504 |
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
|
| 505 |
sljit_uw *ptr = (sljit_uw*)addr;
|
| 506 |
sljit_uw *inst = (sljit_uw*)ptr[0];
|
| 507 |
sljit_uw ldr_literal = ptr[1];
|
| 508 |
sljit_uw src2;
|
| 509 |
|
| 510 |
src2 = get_immediate(new_constant);
|
| 511 |
if (src2) {
|
| 512 |
*inst = 0xe3a00000 | (ldr_literal & 0xf000) | src2;
|
| 513 |
if (flush) {
|
| 514 |
SLJIT_CACHE_FLUSH(inst, inst + 1);
|
| 515 |
}
|
| 516 |
return;
|
| 517 |
}
|
| 518 |
|
| 519 |
src2 = get_immediate(~new_constant);
|
| 520 |
if (src2) {
|
| 521 |
*inst = 0xe3e00000 | (ldr_literal & 0xf000) | src2;
|
| 522 |
if (flush) {
|
| 523 |
SLJIT_CACHE_FLUSH(inst, inst + 1);
|
| 524 |
}
|
| 525 |
return;
|
| 526 |
}
|
| 527 |
|
| 528 |
if (ldr_literal & (1 << 23))
|
| 529 |
ptr = inst + ((ldr_literal & 0xfff) >> 2) + 2;
|
| 530 |
else
|
| 531 |
ptr = inst + 1;
|
| 532 |
|
| 533 |
if (*inst != ldr_literal) {
|
| 534 |
*inst = ldr_literal;
|
| 535 |
if (flush) {
|
| 536 |
SLJIT_CACHE_FLUSH(inst, inst + 1);
|
| 537 |
}
|
| 538 |
}
|
| 539 |
*ptr = new_constant;
|
| 540 |
#else
|
| 541 |
sljit_uw *inst = (sljit_uw*)addr;
|
| 542 |
SLJIT_ASSERT((inst[0] & 0xfff00000) == MOVW && (inst[1] & 0xfff00000) == MOVT);
|
| 543 |
inst[0] = MOVW | (inst[0] & 0xf000) | ((new_constant << 4) & 0xf0000) | (new_constant & 0xfff);
|
| 544 |
inst[1] = MOVT | (inst[1] & 0xf000) | ((new_constant >> 12) & 0xf0000) | ((new_constant >> 16) & 0xfff);
|
| 545 |
if (flush) {
|
| 546 |
SLJIT_CACHE_FLUSH(inst, inst + 2);
|
| 547 |
}
|
| 548 |
#endif
|
| 549 |
}
|
| 550 |
|
| 551 |
SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
|
| 552 |
{
|
| 553 |
struct sljit_memory_fragment *buf;
|
| 554 |
sljit_uw *code;
|
| 555 |
sljit_uw *code_ptr;
|
| 556 |
sljit_uw *buf_ptr;
|
| 557 |
sljit_uw *buf_end;
|
| 558 |
sljit_uw size;
|
| 559 |
sljit_uw word_count;
|
| 560 |
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
|
| 561 |
sljit_uw cpool_size;
|
| 562 |
sljit_uw cpool_skip_alignment;
|
| 563 |
sljit_uw cpool_current_index;
|
| 564 |
sljit_uw *cpool_start_address;
|
| 565 |
sljit_uw *last_pc_patch;
|
| 566 |
struct future_patch *first_patch;
|
| 567 |
#endif
|
| 568 |
|
| 569 |
struct sljit_label *label;
|
| 570 |
struct sljit_jump *jump;
|
| 571 |
struct sljit_const *const_;
|
| 572 |
|
| 573 |
CHECK_ERROR_PTR();
|
| 574 |
check_sljit_generate_code(compiler);
|
| 575 |
reverse_buf(compiler);
|
| 576 |
|
| 577 |
/* Second code generation pass. */
|
| 578 |
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
|
| 579 |
size = compiler->size + (compiler->patches << 1);
|
| 580 |
if (compiler->cpool_fill > 0)
|
| 581 |
size += compiler->cpool_fill + CONST_POOL_ALIGNMENT - 1;
|
| 582 |
#else
|
| 583 |
size = compiler->size;
|
| 584 |
#endif
|
| 585 |
code = (sljit_uw*)SLJIT_MALLOC_EXEC(size * sizeof(sljit_uw));
|
| 586 |
PTR_FAIL_WITH_EXEC_IF(code);
|
| 587 |
buf = compiler->buf;
|
| 588 |
|
| 589 |
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
|
| 590 |
cpool_size = 0;
|
| 591 |
cpool_skip_alignment = 0;
|
| 592 |
cpool_current_index = 0;
|
| 593 |
cpool_start_address = NULL;
|
| 594 |
first_patch = NULL;
|
| 595 |
last_pc_patch = code;
|
| 596 |
#endif
|
| 597 |
|
| 598 |
code_ptr = code;
|
| 599 |
word_count = 0;
|
| 600 |
|
| 601 |
label = compiler->labels;
|
| 602 |
jump = compiler->jumps;
|
| 603 |
const_ = compiler->consts;
|
| 604 |
|
| 605 |
if (label && label->size == 0) {
|
| 606 |
label->addr = (sljit_uw)code;
|
| 607 |
label->size = 0;
|
| 608 |
label = label->next;
|
| 609 |
}
|
| 610 |
|
| 611 |
do {
|
| 612 |
buf_ptr = (sljit_uw*)buf->memory;
|
| 613 |
buf_end = buf_ptr + (buf->used_size >> 2);
|
| 614 |
do {
|
| 615 |
word_count++;
|
| 616 |
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
|
| 617 |
if (cpool_size > 0) {
|
| 618 |
if (cpool_skip_alignment > 0) {
|
| 619 |
buf_ptr++;
|
| 620 |
cpool_skip_alignment--;
|
| 621 |
}
|
| 622 |
else {
|
| 623 |
if (SLJIT_UNLIKELY(resolve_const_pool_index(&first_patch, cpool_current_index, cpool_start_address, buf_ptr))) {
|
| 624 |
SLJIT_FREE_EXEC(code);
|
| 625 |
compiler->error = SLJIT_ERR_ALLOC_FAILED;
|
| 626 |
return NULL;
|
| 627 |
}
|
| 628 |
buf_ptr++;
|
| 629 |
if (++cpool_current_index >= cpool_size) {
|
| 630 |
SLJIT_ASSERT(!first_patch);
|
| 631 |
cpool_size = 0;
|
| 632 |
if (label && label->size == word_count) {
|
| 633 |
/* Points after the current instruction. */
|
| 634 |
label->addr = (sljit_uw)code_ptr;
|
| 635 |
label->size = code_ptr - code;
|
| 636 |
label = label->next;
|
| 637 |
}
|
| 638 |
}
|
| 639 |
}
|
| 640 |
}
|
| 641 |
else if ((*buf_ptr & 0xff000000) != PUSH_POOL) {
|
| 642 |
#endif
|
| 643 |
*code_ptr = *buf_ptr++;
|
| 644 |
/* These structures are ordered by their address. */
|
| 645 |
SLJIT_ASSERT(!label || label->size >= word_count);
|
| 646 |
SLJIT_ASSERT(!jump || jump->addr >= word_count);
|
| 647 |
SLJIT_ASSERT(!const_ || const_->addr >= word_count);
|
| 648 |
if (jump && jump->addr == word_count) {
|
| 649 |
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
|
| 650 |
if (detect_jump_type(jump, code_ptr, code))
|
| 651 |
code_ptr--;
|
| 652 |
jump->addr = (sljit_uw)code_ptr;
|
| 653 |
#else
|
| 654 |
jump->addr = (sljit_uw)(code_ptr - 2);
|
| 655 |
if (detect_jump_type(jump, code_ptr, code))
|
| 656 |
code_ptr -= 2;
|
| 657 |
#endif
|
| 658 |
jump = jump->next;
|
| 659 |
}
|
| 660 |
if (label && label->size == word_count) {
|
| 661 |
/* code_ptr can be affected above. */
|
| 662 |
label->addr = (sljit_uw)(code_ptr + 1);
|
| 663 |
label->size = (code_ptr + 1) - code;
|
| 664 |
label = label->next;
|
| 665 |
}
|
| 666 |
if (const_ && const_->addr == word_count) {
|
| 667 |
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
|
| 668 |
const_->addr = (sljit_uw)code_ptr;
|
| 669 |
#else
|
| 670 |
const_->addr = (sljit_uw)(code_ptr - 1);
|
| 671 |
#endif
|
| 672 |
const_ = const_->next;
|
| 673 |
}
|
| 674 |
code_ptr++;
|
| 675 |
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
|
| 676 |
}
|
| 677 |
else {
|
| 678 |
/* Fortunately, no need to shift. */
|
| 679 |
cpool_size = *buf_ptr++ & ~PUSH_POOL;
|
| 680 |
SLJIT_ASSERT(cpool_size > 0);
|
| 681 |
cpool_start_address = ALIGN_INSTRUCTION(code_ptr + 1);
|
| 682 |
cpool_current_index = patch_pc_relative_loads(last_pc_patch, code_ptr, cpool_start_address, cpool_size);
|
| 683 |
if (cpool_current_index > 0) {
|
| 684 |
/* Unconditional branch. */
|
| 685 |
*code_ptr = B | (((cpool_start_address - code_ptr) + cpool_current_index - 2) & ~PUSH_POOL);
|
| 686 |
code_ptr = cpool_start_address + cpool_current_index;
|
| 687 |
}
|
| 688 |
cpool_skip_alignment = CONST_POOL_ALIGNMENT - 1;
|
| 689 |
cpool_current_index = 0;
|
| 690 |
last_pc_patch = code_ptr;
|
| 691 |
}
|
| 692 |
#endif
|
| 693 |
} while (buf_ptr < buf_end);
|
| 694 |
buf = buf->next;
|
| 695 |
} while (buf);
|
| 696 |
|
| 697 |
SLJIT_ASSERT(!label);
|
| 698 |
SLJIT_ASSERT(!jump);
|
| 699 |
SLJIT_ASSERT(!const_);
|
| 700 |
|
| 701 |
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
|
| 702 |
SLJIT_ASSERT(cpool_size == 0);
|
| 703 |
if (compiler->cpool_fill > 0) {
|
| 704 |
cpool_start_address = ALIGN_INSTRUCTION(code_ptr);
|
| 705 |
cpool_current_index = patch_pc_relative_loads(last_pc_patch, code_ptr, cpool_start_address, compiler->cpool_fill);
|
| 706 |
if (cpool_current_index > 0)
|
| 707 |
code_ptr = cpool_start_address + cpool_current_index;
|
| 708 |
|
| 709 |
buf_ptr = compiler->cpool;
|
| 710 |
buf_end = buf_ptr + compiler->cpool_fill;
|
| 711 |
cpool_current_index = 0;
|
| 712 |
while (buf_ptr < buf_end) {
|
| 713 |
if (SLJIT_UNLIKELY(resolve_const_pool_index(&first_patch, cpool_current_index, cpool_start_address, buf_ptr))) {
|
| 714 |
SLJIT_FREE_EXEC(code);
|
| 715 |
compiler->error = SLJIT_ERR_ALLOC_FAILED;
|
| 716 |
return NULL;
|
| 717 |
}
|
| 718 |
buf_ptr++;
|
| 719 |
cpool_current_index++;
|
| 720 |
}
|
| 721 |
SLJIT_ASSERT(!first_patch);
|
| 722 |
}
|
| 723 |
#endif
|
| 724 |
|
| 725 |
jump = compiler->jumps;
|
| 726 |
while (jump) {
|
| 727 |
buf_ptr = (sljit_uw*)jump->addr;
|
| 728 |
|
| 729 |
if (jump->flags & PATCH_B) {
|
| 730 |
if (!(jump->flags & JUMP_ADDR)) {
|
| 731 |
SLJIT_ASSERT(jump->flags & JUMP_LABEL);
|
| 732 |
SLJIT_ASSERT(((sljit_w)jump->u.label->addr - (sljit_w)(buf_ptr + 2)) <= 0x01ffffff && ((sljit_w)jump->u.label->addr - (sljit_w)(buf_ptr + 2)) >= -0x02000000);
|
| 733 |
*buf_ptr |= (((sljit_w)jump->u.label->addr - (sljit_w)(buf_ptr + 2)) >> 2) & 0x00ffffff;
|
| 734 |
}
|
| 735 |
else {
|
| 736 |
SLJIT_ASSERT(((sljit_w)jump->u.target - (sljit_w)(buf_ptr + 2)) <= 0x01ffffff && ((sljit_w)jump->u.target - (sljit_w)(buf_ptr + 2)) >= -0x02000000);
|
| 737 |
*buf_ptr |= (((sljit_w)jump->u.target - (sljit_w)(buf_ptr + 2)) >> 2) & 0x00ffffff;
|
| 738 |
}
|
| 739 |
}
|
| 740 |
else if (jump->flags & SLJIT_REWRITABLE_JUMP) {
|
| 741 |
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
|
| 742 |
jump->addr = (sljit_uw)code_ptr;
|
| 743 |
code_ptr[0] = (sljit_uw)buf_ptr;
|
| 744 |
code_ptr[1] = *buf_ptr;
|
| 745 |
inline_set_jump_addr((sljit_uw)code_ptr, (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target, 0);
|
| 746 |
code_ptr += 2;
|
| 747 |
#else
|
| 748 |
inline_set_jump_addr((sljit_uw)buf_ptr, (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target, 0);
|
| 749 |
#endif
|
| 750 |
}
|
| 751 |
else {
|
| 752 |
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
|
| 753 |
if (jump->flags & IS_BL)
|
| 754 |
buf_ptr--;
|
| 755 |
if (*buf_ptr & (1 << 23))
|
| 756 |
buf_ptr += ((*buf_ptr & 0xfff) >> 2) + 2;
|
| 757 |
else
|
| 758 |
buf_ptr += 1;
|
| 759 |
*buf_ptr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target;
|
| 760 |
#else
|
| 761 |
inline_set_jump_addr((sljit_uw)buf_ptr, (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target, 0);
|
| 762 |
#endif
|
| 763 |
}
|
| 764 |
jump = jump->next;
|
| 765 |
}
|
| 766 |
|
| 767 |
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
|
| 768 |
const_ = compiler->consts;
|
| 769 |
while (const_) {
|
| 770 |
buf_ptr = (sljit_uw*)const_->addr;
|
| 771 |
const_->addr = (sljit_uw)code_ptr;
|
| 772 |
|
| 773 |
code_ptr[0] = (sljit_uw)buf_ptr;
|
| 774 |
code_ptr[1] = *buf_ptr;
|
| 775 |
if (*buf_ptr & (1 << 23))
|
| 776 |
buf_ptr += ((*buf_ptr & 0xfff) >> 2) + 2;
|
| 777 |
else
|
| 778 |
buf_ptr += 1;
|
| 779 |
/* Set the value again (can be a simple constant). */
|
| 780 |
inline_set_const((sljit_uw)code_ptr, *buf_ptr, 0);
|
| 781 |
code_ptr += 2;
|
| 782 |
|
| 783 |
const_ = const_->next;
|
| 784 |
}
|
| 785 |
#endif
|
| 786 |
|
| 787 |
SLJIT_ASSERT(code_ptr - code <= (int)size);
|
| 788 |
|
| 789 |
SLJIT_CACHE_FLUSH(code, code_ptr);
|
| 790 |
compiler->error = SLJIT_ERR_COMPILED;
|
| 791 |
compiler->executable_size = size * sizeof(sljit_uw);
|
| 792 |
return code;
|
| 793 |
}
|
| 794 |
|
| 795 |
/* emit_op inp_flags.
|
| 796 |
WRITE_BACK must be the first, since it is a flag. */
|
| 797 |
#define WRITE_BACK 0x01
|
| 798 |
#define ALLOW_IMM 0x02
|
| 799 |
#define ALLOW_INV_IMM 0x04
|
| 800 |
#define ALLOW_ANY_IMM (ALLOW_IMM | ALLOW_INV_IMM)
|
| 801 |
#define ARG_TEST 0x08
|
| 802 |
|
| 803 |
/* Creates an index in data_transfer_insts array. */
|
| 804 |
#define WORD_DATA 0x00
|
| 805 |
#define BYTE_DATA 0x10
|
| 806 |
#define HALF_DATA 0x20
|
| 807 |
#define SIGNED_DATA 0x40
|
| 808 |
#define LOAD_DATA 0x80
|
| 809 |
|
| 810 |
#define EMIT_INSTRUCTION(inst) \
|
| 811 |
FAIL_IF(push_inst(compiler, (inst)))
|
| 812 |
|
| 813 |
/* Condition: AL. */
|
| 814 |
#define EMIT_DATA_PROCESS_INS(opcode, set_flags, dst, src1, src2) \
|
| 815 |
(0xe0000000 | ((opcode) << 21) | (set_flags) | RD(dst) | RN(src1) | (src2))
|
| 816 |
|
| 817 |
static int emit_op(struct sljit_compiler *compiler, int op, int inp_flags,
|
| 818 |
int dst, sljit_w dstw,
|
| 819 |
int src1, sljit_w src1w,
|
| 820 |
int src2, sljit_w src2w);
|
| 821 |
|
| 822 |
SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct sljit_compiler *compiler, int args, int temporaries, int generals, int local_size)
|
| 823 |
{
|
| 824 |
int size;
|
| 825 |
sljit_uw push;
|
| 826 |
|
| 827 |
CHECK_ERROR();
|
| 828 |
check_sljit_emit_enter(compiler, args, temporaries, generals, local_size);
|
| 829 |
|
| 830 |
compiler->temporaries = temporaries;
|
| 831 |
compiler->generals = generals;
|
| 832 |
|
| 833 |
/* Push general registers, temporary registers
|
| 834 |
stmdb sp!, {..., lr} */
|
| 835 |
push = PUSH | (1 << 14);
|
| 836 |
if (temporaries >= 5)
|
| 837 |
push |= 1 << 11;
|
| 838 |
if (temporaries >= 4)
|
| 839 |
push |= 1 << 10;
|
| 840 |
if (generals >= 5)
|
| 841 |
push |= 1 << 8;
|
| 842 |
if (generals >= 4)
|
| 843 |
push |= 1 << 7;
|
| 844 |
if (generals >= 3)
|
| 845 |
push |= 1 << 6;
|
| 846 |
if (generals >= 2)
|
| 847 |
push |= 1 << 5;
|
| 848 |
if (generals >= 1)
|
| 849 |
push |= 1 << 4;
|
| 850 |
EMIT_INSTRUCTION(push);
|
| 851 |
|
| 852 |
/* Stack must be aligned to 8 bytes: */
|
| 853 |
size = (1 + generals) * sizeof(sljit_uw);
|
| 854 |
if (temporaries >= 4)
|
| 855 |
size += (temporaries - 3) * sizeof(sljit_uw);
|
| 856 |
local_size += size;
|
| 857 |
local_size = (local_size + 7) & ~7;
|
| 858 |
local_size -= size;
|
| 859 |
compiler->local_size = local_size;
|
| 860 |
if (local_size > 0)
|
| 861 |
FAIL_IF(emit_op(compiler, SLJIT_SUB, ALLOW_IMM, SLJIT_LOCALS_REG, 0, SLJIT_LOCALS_REG, 0, SLJIT_IMM, local_size));
|
| 862 |
|
| 863 |
if (args >= 1)
|
| 864 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, SLJIT_GENERAL_REG1, SLJIT_UNUSED, RM(SLJIT_TEMPORARY_REG1)));
|
| 865 |
if (args >= 2)
|
| 866 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, SLJIT_GENERAL_REG2, SLJIT_UNUSED, RM(SLJIT_TEMPORARY_REG2)));
|
| 867 |
if (args >= 3)
|
| 868 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, SLJIT_GENERAL_REG3, SLJIT_UNUSED, RM(SLJIT_TEMPORARY_REG3)));
|
| 869 |
|
| 870 |
return SLJIT_SUCCESS;
|
| 871 |
}
|
| 872 |
|
| 873 |
SLJIT_API_FUNC_ATTRIBUTE void sljit_fake_enter(struct sljit_compiler *compiler, int args, int temporaries, int generals, int local_size)
|
| 874 |
{
|
| 875 |
int size;
|
| 876 |
|
| 877 |
CHECK_ERROR_VOID();
|
| 878 |
check_sljit_fake_enter(compiler, args, temporaries, generals, local_size);
|
| 879 |
|
| 880 |
compiler->temporaries = temporaries;
|
| 881 |
compiler->generals = generals;
|
| 882 |
|
| 883 |
size = (1 + generals) * sizeof(sljit_uw);
|
| 884 |
if (temporaries >= 4)
|
| 885 |
size += (temporaries - 3) * sizeof(sljit_uw);
|
| 886 |
local_size += size;
|
| 887 |
local_size = (local_size + 7) & ~7;
|
| 888 |
local_size -= size;
|
| 889 |
compiler->local_size = local_size;
|
| 890 |
}
|
| 891 |
|
| 892 |
SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct sljit_compiler *compiler, int src, sljit_w srcw)
|
| 893 |
{
|
| 894 |
sljit_uw pop;
|
| 895 |
|
| 896 |
CHECK_ERROR();
|
| 897 |
check_sljit_emit_return(compiler, src, srcw);
|
| 898 |
|
| 899 |
if (src != SLJIT_UNUSED && src != SLJIT_RETURN_REG)
|
| 900 |
FAIL_IF(emit_op(compiler, SLJIT_MOV, ALLOW_ANY_IMM, SLJIT_RETURN_REG, 0, TMP_REG1, 0, src, srcw));
|
| 901 |
|
| 902 |
if (compiler->local_size > 0)
|
| 903 |
FAIL_IF(emit_op(compiler, SLJIT_ADD, ALLOW_IMM, SLJIT_LOCALS_REG, 0, SLJIT_LOCALS_REG, 0, SLJIT_IMM, compiler->local_size));
|
| 904 |
|
| 905 |
pop = POP | (1 << 15);
|
| 906 |
/* Push general registers, temporary registers
|
| 907 |
ldmia sp!, {..., pc} */
|
| 908 |
if (compiler->temporaries >= 5)
|
| 909 |
pop |= 1 << 11;
|
| 910 |
if (compiler->temporaries >= 4)
|
| 911 |
pop |= 1 << 10;
|
| 912 |
if (compiler->generals >= 5)
|
| 913 |
pop |= 1 << 8;
|
| 914 |
if (compiler->generals >= 4)
|
| 915 |
pop |= 1 << 7;
|
| 916 |
if (compiler->generals >= 3)
|
| 917 |
pop |= 1 << 6;
|
| 918 |
if (compiler->generals >= 2)
|
| 919 |
pop |= 1 << 5;
|
| 920 |
if (compiler->generals >= 1)
|
| 921 |
pop |= 1 << 4;
|
| 922 |
|
| 923 |
return push_inst(compiler, pop);
|
| 924 |
}
|
| 925 |
|
| 926 |
/* --------------------------------------------------------------------- */
|
| 927 |
/* Operators */
|
| 928 |
/* --------------------------------------------------------------------- */
|
| 929 |
|
| 930 |
/* s/l - store/load (1 bit)
|
| 931 |
u/s - signed/unsigned (1 bit)
|
| 932 |
w/b/h/N - word/byte/half/NOT allowed (2 bit)
|
| 933 |
It contans 16 items, but not all are different. */
|
| 934 |
|
| 935 |
static sljit_w data_transfer_insts[16] = {
|
| 936 |
/* s u w */ 0xe5000000 /* str */,
|
| 937 |
/* s u b */ 0xe5400000 /* strb */,
|
| 938 |
/* s u h */ 0xe10000b0 /* strh */,
|
| 939 |
/* s u N */ 0x00000000 /* not allowed */,
|
| 940 |
/* s s w */ 0xe5000000 /* str */,
|
| 941 |
/* s s b */ 0xe5400000 /* strb */,
|
| 942 |
/* s s h */ 0xe10000b0 /* strh */,
|
| 943 |
/* s s N */ 0x00000000 /* not allowed */,
|
| 944 |
|
| 945 |
/* l u w */ 0xe5100000 /* ldr */,
|
| 946 |
/* l u b */ 0xe5500000 /* ldrb */,
|
| 947 |
/* l u h */ 0xe11000b0 /* ldrh */,
|
| 948 |
/* l u N */ 0x00000000 /* not allowed */,
|
| 949 |
/* l s w */ 0xe5100000 /* ldr */,
|
| 950 |
/* l s b */ 0xe11000d0 /* ldrsb */,
|
| 951 |
/* l s h */ 0xe11000f0 /* ldrsh */,
|
| 952 |
/* l s N */ 0x00000000 /* not allowed */,
|
| 953 |
};
|
| 954 |
|
| 955 |
#define EMIT_DATA_TRANSFER(type, add, wb, target, base1, base2) \
|
| 956 |
(data_transfer_insts[(type) >> 4] | ((add) << 23) | ((wb) << 21) | (reg_map[target] << 12) | (reg_map[base1] << 16) | (base2))
|
| 957 |
/* Normal ldr/str instruction.
|
| 958 |
Type2: ldrsb, ldrh, ldrsh */
|
| 959 |
#define IS_TYPE1_TRANSFER(type) \
|
| 960 |
(data_transfer_insts[(type) >> 4] & 0x04000000)
|
| 961 |
#define TYPE2_TRANSFER_IMM(imm) \
|
| 962 |
(((imm) & 0xf) | (((imm) & 0xf0) << 4) | (1 << 22))
|
| 963 |
|
| 964 |
/* flags: */
|
| 965 |
/* Arguments are swapped. */
|
| 966 |
#define ARGS_SWAPPED 0x01
|
| 967 |
/* Inverted immediate. */
|
| 968 |
#define INV_IMM 0x02
|
| 969 |
/* Source and destination is register. */
|
| 970 |
#define REG_DEST 0x04
|
| 971 |
#define REG_SOURCE 0x08
|
| 972 |
/* One instruction is enough. */
|
| 973 |
#define FAST_DEST 0x10
|
| 974 |
/* Multiple instructions are required. */
|
| 975 |
#define SLOW_DEST 0x20
|
| 976 |
/* SET_FLAGS must be (1 << 20) as it is also the value of S bit (can be used for optimization). */
|
| 977 |
#define SET_FLAGS (1 << 20)
|
| 978 |
/* dst: reg
|
| 979 |
src1: reg
|
| 980 |
src2: reg or imm (if allowed)
|
| 981 |
SRC2_IMM must be (1 << 25) as it is also the value of I bit (can be used for optimization). */
|
| 982 |
#define SRC2_IMM (1 << 25)
|
| 983 |
|
| 984 |
#define EMIT_DATA_PROCESS_INS_AND_RETURN(opcode) \
|
| 985 |
return push_inst(compiler, EMIT_DATA_PROCESS_INS(opcode, flags & SET_FLAGS, dst, src1, (src2 & SRC2_IMM) ? src2 : RM(src2)))
|
| 986 |
|
| 987 |
#define EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(opcode, dst, src1, src2) \
|
| 988 |
return push_inst(compiler, EMIT_DATA_PROCESS_INS(opcode, flags & SET_FLAGS, dst, src1, src2))
|
| 989 |
|
| 990 |
#define EMIT_SHIFT_INS_AND_RETURN(opcode) \
|
| 991 |
SLJIT_ASSERT(!(flags & INV_IMM) && !(src2 & SRC2_IMM)); \
|
| 992 |
if (compiler->shift_imm != 0x20) { \
|
| 993 |
SLJIT_ASSERT(src1 == TMP_REG1); \
|
| 994 |
SLJIT_ASSERT(!(flags & ARGS_SWAPPED)); \
|
| 995 |
return push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, flags & SET_FLAGS, dst, SLJIT_UNUSED, (compiler->shift_imm << 7) | (opcode << 5) | reg_map[src2])); \
|
| 996 |
} \
|
| 997 |
return push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, flags & SET_FLAGS, dst, SLJIT_UNUSED, (reg_map[(flags & ARGS_SWAPPED) ? src1 : src2] << 8) | (opcode << 5) | 0x10 | ((flags & ARGS_SWAPPED) ? reg_map[src2] : reg_map[src1])));
|
| 998 |
|
| 999 |
static SLJIT_INLINE int emit_single_op(struct sljit_compiler *compiler, int op, int flags,
|
| 1000 |
int dst, int src1, int src2)
|
| 1001 |
{
|
| 1002 |
sljit_w mul_inst;
|
| 1003 |
|
| 1004 |
switch (GET_OPCODE(op)) {
|
| 1005 |
case SLJIT_ADD:
|
| 1006 |
SLJIT_ASSERT(!(flags & INV_IMM));
|
| 1007 |
EMIT_DATA_PROCESS_INS_AND_RETURN(ADD_DP);
|
| 1008 |
|
| 1009 |
case SLJIT_ADDC:
|
| 1010 |
SLJIT_ASSERT(!(flags & INV_IMM));
|
| 1011 |
EMIT_DATA_PROCESS_INS_AND_RETURN(ADC_DP);
|
| 1012 |
|
| 1013 |
case SLJIT_SUB:
|
| 1014 |
SLJIT_ASSERT(!(flags & INV_IMM));
|
| 1015 |
if (!(flags & ARGS_SWAPPED))
|
| 1016 |
EMIT_DATA_PROCESS_INS_AND_RETURN(SUB_DP);
|
| 1017 |
EMIT_DATA_PROCESS_INS_AND_RETURN(RSB_DP);
|
| 1018 |
|
| 1019 |
case SLJIT_SUBC:
|
| 1020 |
SLJIT_ASSERT(!(flags & INV_IMM));
|
| 1021 |
if (!(flags & ARGS_SWAPPED))
|
| 1022 |
EMIT_DATA_PROCESS_INS_AND_RETURN(SBC_DP);
|
| 1023 |
EMIT_DATA_PROCESS_INS_AND_RETURN(RSC_DP);
|
| 1024 |
|
| 1025 |
case SLJIT_MUL:
|
| 1026 |
SLJIT_ASSERT(!(flags & INV_IMM));
|
| 1027 |
SLJIT_ASSERT(!(src2 & SRC2_IMM));
|
| 1028 |
if (SLJIT_UNLIKELY(op & SLJIT_SET_O))
|
| 1029 |
mul_inst = SMULL | (reg_map[TMP_REG3] << 16) | (reg_map[dst] << 12);
|
| 1030 |
else
|
| 1031 |
mul_inst = MUL | (reg_map[dst] << 16);
|
| 1032 |
|
| 1033 |
if (dst != src2)
|
| 1034 |
FAIL_IF(push_inst(compiler, mul_inst | (reg_map[src1] << 8) | reg_map[src2]));
|
| 1035 |
else if (dst != src1)
|
| 1036 |
FAIL_IF(push_inst(compiler, mul_inst | (reg_map[src2] << 8) | reg_map[src1]));
|
| 1037 |
else {
|
| 1038 |
/* Rm and Rd must not be the same register. */
|
| 1039 |
SLJIT_ASSERT(dst != TMP_REG1);
|
| 1040 |
FAIL_IF(push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, 0, TMP_REG1, SLJIT_UNUSED, reg_map[src2])));
|
| 1041 |
FAIL_IF(push_inst(compiler, mul_inst | (reg_map[src2] << 8) | reg_map[TMP_REG1]));
|
| 1042 |
}
|
| 1043 |
|
| 1044 |
if (!(op & SLJIT_SET_O))
|
| 1045 |
return SLJIT_SUCCESS;
|
| 1046 |
|
| 1047 |
/* We need to use TMP_REG3. */
|
| 1048 |
compiler->cache_arg = 0;
|
| 1049 |
compiler->cache_argw = 0;
|
| 1050 |
/* cmp TMP_REG2, dst asr #31. */
|
| 1051 |
return push_inst(compiler, EMIT_DATA_PROCESS_INS(CMP_DP, SET_FLAGS, SLJIT_UNUSED, TMP_REG3, RM(dst) | 0xfc0));
|
| 1052 |
|
| 1053 |
case SLJIT_AND:
|
| 1054 |
if (!(flags & INV_IMM))
|
| 1055 |
EMIT_DATA_PROCESS_INS_AND_RETURN(AND_DP);
|
| 1056 |
EMIT_DATA_PROCESS_INS_AND_RETURN(BIC_DP);
|
| 1057 |
|
| 1058 |
case SLJIT_OR:
|
| 1059 |
SLJIT_ASSERT(!(flags & INV_IMM));
|
| 1060 |
EMIT_DATA_PROCESS_INS_AND_RETURN(ORR_DP);
|
| 1061 |
|
| 1062 |
case SLJIT_XOR:
|
| 1063 |
SLJIT_ASSERT(!(flags & INV_IMM));
|
| 1064 |
EMIT_DATA_PROCESS_INS_AND_RETURN(EOR_DP);
|
| 1065 |
|
| 1066 |
case SLJIT_SHL:
|
| 1067 |
EMIT_SHIFT_INS_AND_RETURN(0);
|
| 1068 |
|
| 1069 |
case SLJIT_LSHR:
|
| 1070 |
EMIT_SHIFT_INS_AND_RETURN(1);
|
| 1071 |
|
| 1072 |
case SLJIT_ASHR:
|
| 1073 |
EMIT_SHIFT_INS_AND_RETURN(2);
|
| 1074 |
|
| 1075 |
case SLJIT_MOV:
|
| 1076 |
SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & ARGS_SWAPPED));
|
| 1077 |
if (dst != src2) {
|
| 1078 |
if (src2 & SRC2_IMM) {
|
| 1079 |
if (flags & INV_IMM)
|
| 1080 |
EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MVN_DP, dst, SLJIT_UNUSED, src2);
|
| 1081 |
EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MOV_DP, dst, SLJIT_UNUSED, src2);
|
| 1082 |
}
|
| 1083 |
EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MOV_DP, dst, SLJIT_UNUSED, reg_map[src2]);
|
| 1084 |
}
|
| 1085 |
return SLJIT_SUCCESS;
|
| 1086 |
|
| 1087 |
case SLJIT_MOV_UB:
|
| 1088 |
case SLJIT_MOV_SB:
|
| 1089 |
SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & ARGS_SWAPPED));
|
| 1090 |
if ((flags & (REG_DEST | REG_SOURCE)) == (REG_DEST | REG_SOURCE)) {
|
| 1091 |
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
|
| 1092 |
if (op == SLJIT_MOV_UB)
|
| 1093 |
return push_inst(compiler, EMIT_DATA_PROCESS_INS(AND_DP, 0, dst, src2, SRC2_IMM | 0xff));
|
| 1094 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, dst, SLJIT_UNUSED, (24 << 7) | reg_map[src2]));
|
| 1095 |
return push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, 0, dst, SLJIT_UNUSED, (24 << 7) | (op == SLJIT_MOV_UB ? 0x20 : 0x40) | reg_map[dst]));
|
| 1096 |
#else
|
| 1097 |
return push_inst(compiler, (op == SLJIT_MOV_UB ? UXTB : SXTB) | RD(dst) | RM(src2));
|
| 1098 |
#endif
|
| 1099 |
}
|
| 1100 |
else if (dst != src2) {
|
| 1101 |
SLJIT_ASSERT(src2 & SRC2_IMM);
|
| 1102 |
if (flags & INV_IMM)
|
| 1103 |
EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MVN_DP, dst, SLJIT_UNUSED, src2);
|
| 1104 |
EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MOV_DP, dst, SLJIT_UNUSED, src2);
|
| 1105 |
}
|
| 1106 |
return SLJIT_SUCCESS;
|
| 1107 |
|
| 1108 |
case SLJIT_MOV_UH:
|
| 1109 |
case SLJIT_MOV_SH:
|
| 1110 |
SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & ARGS_SWAPPED));
|
| 1111 |
if ((flags & (REG_DEST | REG_SOURCE)) == (REG_DEST | REG_SOURCE)) {
|
| 1112 |
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
|
| 1113 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, dst, SLJIT_UNUSED, (16 << 7) | reg_map[src2]));
|
| 1114 |
return push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, 0, dst, SLJIT_UNUSED, (16 << 7) | (op == SLJIT_MOV_UH ? 0x20 : 0x40) | reg_map[dst]));
|
| 1115 |
#else
|
| 1116 |
return push_inst(compiler, (op == SLJIT_MOV_UH ? UXTH : SXTH) | RD(dst) | RM(src2));
|
| 1117 |
#endif
|
| 1118 |
}
|
| 1119 |
else if (dst != src2) {
|
| 1120 |
SLJIT_ASSERT(src2 & SRC2_IMM);
|
| 1121 |
if (flags & INV_IMM)
|
| 1122 |
EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MVN_DP, dst, SLJIT_UNUSED, src2);
|
| 1123 |
EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MOV_DP, dst, SLJIT_UNUSED, src2);
|
| 1124 |
}
|
| 1125 |
return SLJIT_SUCCESS;
|
| 1126 |
|
| 1127 |
case SLJIT_NOT:
|
| 1128 |
if (src2 & SRC2_IMM) {
|
| 1129 |
if (flags & INV_IMM)
|
| 1130 |
EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MOV_DP, dst, SLJIT_UNUSED, src2);
|
| 1131 |
EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MVN_DP, dst, SLJIT_UNUSED, src2);
|
| 1132 |
}
|
| 1133 |
EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MVN_DP, dst, SLJIT_UNUSED, RM(src2));
|
| 1134 |
|
| 1135 |
case SLJIT_CLZ:
|
| 1136 |
SLJIT_ASSERT(!(flags & INV_IMM));
|
| 1137 |
SLJIT_ASSERT(!(src2 & SRC2_IMM));
|
| 1138 |
FAIL_IF(push_inst(compiler, CLZ | RD(dst) | RM(src2)));
|
| 1139 |
if (flags & SET_FLAGS)
|
| 1140 |
EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(CMP_DP, SLJIT_UNUSED, dst, SRC2_IMM);
|
| 1141 |
return SLJIT_SUCCESS;
|
| 1142 |
}
|
| 1143 |
SLJIT_ASSERT_STOP();
|
| 1144 |
return SLJIT_SUCCESS;
|
| 1145 |
}
|
| 1146 |
|
| 1147 |
#undef EMIT_DATA_PROCESS_INS_AND_RETURN
|
| 1148 |
#undef EMIT_FULL_DATA_PROCESS_INS_AND_RETURN
|
| 1149 |
#undef EMIT_SHIFT_INS_AND_RETURN
|
| 1150 |
|
| 1151 |
/* Tests whether the immediate can be stored in the 12 bit imm field.
|
| 1152 |
Returns with 0 if not possible. */
|
| 1153 |
static sljit_uw get_immediate(sljit_uw imm)
|
| 1154 |
{
|
| 1155 |
int rol;
|
| 1156 |
|
| 1157 |
if (imm <= 0xff)
|
| 1158 |
return SRC2_IMM | imm;
|
| 1159 |
|
| 1160 |
if (!(imm & 0xff000000)) {
|
| 1161 |
imm <<= 8;
|
| 1162 |
rol = 8;
|
| 1163 |
}
|
| 1164 |
else {
|
| 1165 |
imm = (imm << 24) | (imm >> 8);
|
| 1166 |
rol = 0;
|
| 1167 |
}
|
| 1168 |
|
| 1169 |
if (!(imm & 0xff000000)) {
|
| 1170 |
imm <<= 8;
|
| 1171 |
rol += 4;
|
| 1172 |
}
|
| 1173 |
|
| 1174 |
if (!(imm & 0xf0000000)) {
|
| 1175 |
imm <<= 4;
|
| 1176 |
rol += 2;
|
| 1177 |
}
|
| 1178 |
|
| 1179 |
if (!(imm & 0xc0000000)) {
|
| 1180 |
imm <<= 2;
|
| 1181 |
rol += 1;
|
| 1182 |
}
|
| 1183 |
|
| 1184 |
if (!(imm & 0x00ffffff))
|
| 1185 |
return SRC2_IMM | (imm >> 24) | (rol << 8);
|
| 1186 |
else
|
| 1187 |
return 0;
|
| 1188 |
}
|
| 1189 |
|
| 1190 |
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
|
| 1191 |
static int generate_int(struct sljit_compiler *compiler, int reg, sljit_uw imm, int positive)
|
| 1192 |
{
|
| 1193 |
sljit_uw mask;
|
| 1194 |
sljit_uw imm1;
|
| 1195 |
sljit_uw imm2;
|
| 1196 |
int rol;
|
| 1197 |
|
| 1198 |
/* Step1: Search a zero byte (8 continous zero bit). */
|
| 1199 |
mask = 0xff000000;
|
| 1200 |
rol = 8;
|
| 1201 |
while(1) {
|
| 1202 |
if (!(imm & mask)) {
|
| 1203 |
/* Rol imm by rol. */
|
| 1204 |
imm = (imm << rol) | (imm >> (32 - rol));
|
| 1205 |
/* Calculate arm rol. */
|
| 1206 |
rol = 4 + (rol >> 1);
|
| 1207 |
break;
|
| 1208 |
}
|
| 1209 |
rol += 2;
|
| 1210 |
mask >>= 2;
|
| 1211 |
if (mask & 0x3) {
|
| 1212 |
/* rol by 8. */
|
| 1213 |
imm = (imm << 8) | (imm >> 24);
|
| 1214 |
mask = 0xff00;
|
| 1215 |
rol = 24;
|
| 1216 |
while (1) {
|
| 1217 |
if (!(imm & mask)) {
|
| 1218 |
/* Rol imm by rol. */
|
| 1219 |
imm = (imm << rol) | (imm >> (32 - rol));
|
| 1220 |
/* Calculate arm rol. */
|
| 1221 |
rol = (rol >> 1) - 8;
|
| 1222 |
break;
|
| 1223 |
}
|
| 1224 |
rol += 2;
|
| 1225 |
mask >>= 2;
|
| 1226 |
if (mask & 0x3)
|
| 1227 |
return 0;
|
| 1228 |
}
|
| 1229 |
break;
|
| 1230 |
}
|
| 1231 |
}
|
| 1232 |
|
| 1233 |
/* The low 8 bit must be zero. */
|
| 1234 |
SLJIT_ASSERT(!(imm & 0xff));
|
| 1235 |
|
| 1236 |
if (!(imm & 0xff000000)) {
|
| 1237 |
imm1 = SRC2_IMM | ((imm >> 16) & 0xff) | (((rol + 4) & 0xf) << 8);
|
| 1238 |
imm2 = SRC2_IMM | ((imm >> 8) & 0xff) | (((rol + 8) & 0xf) << 8);
|
| 1239 |
}
|
| 1240 |
else if (imm & 0xc0000000) {
|
| 1241 |
imm1 = SRC2_IMM | ((imm >> 24) & 0xff) | ((rol & 0xf) << 8);
|
| 1242 |
imm <<= 8;
|
| 1243 |
rol += 4;
|
| 1244 |
|
| 1245 |
if (!(imm & 0xff000000)) {
|
| 1246 |
imm <<= 8;
|
| 1247 |
rol += 4;
|
| 1248 |
}
|
| 1249 |
|
| 1250 |
if (!(imm & 0xf0000000)) {
|
| 1251 |
imm <<= 4;
|
| 1252 |
rol += 2;
|
| 1253 |
}
|
| 1254 |
|
| 1255 |
if (!(imm & 0xc0000000)) {
|
| 1256 |
imm <<= 2;
|
| 1257 |
rol += 1;
|
| 1258 |
}
|
| 1259 |
|
| 1260 |
if (!(imm & 0x00ffffff))
|
| 1261 |
imm2 = SRC2_IMM | (imm >> 24) | ((rol & 0xf) << 8);
|
| 1262 |
else
|
| 1263 |
return 0;
|
| 1264 |
}
|
| 1265 |
else {
|
| 1266 |
if (!(imm & 0xf0000000)) {
|
| 1267 |
imm <<= 4;
|
| 1268 |
rol += 2;
|
| 1269 |
}
|
| 1270 |
|
| 1271 |
if (!(imm & 0xc0000000)) {
|
| 1272 |
imm <<= 2;
|
| 1273 |
rol += 1;
|
| 1274 |
}
|
| 1275 |
|
| 1276 |
imm1 = SRC2_IMM | ((imm >> 24) & 0xff) | ((rol & 0xf) << 8);
|
| 1277 |
imm <<= 8;
|
| 1278 |
rol += 4;
|
| 1279 |
|
| 1280 |
if (!(imm & 0xf0000000)) {
|
| 1281 |
imm <<= 4;
|
| 1282 |
rol += 2;
|
| 1283 |
}
|
| 1284 |
|
| 1285 |
if (!(imm & 0xc0000000)) {
|
| 1286 |
imm <<= 2;
|
| 1287 |
rol += 1;
|
| 1288 |
}
|
| 1289 |
|
| 1290 |
if (!(imm & 0x00ffffff))
|
| 1291 |
imm2 = SRC2_IMM | (imm >> 24) | ((rol & 0xf) << 8);
|
| 1292 |
else
|
| 1293 |
return 0;
|
| 1294 |
}
|
| 1295 |
|
| 1296 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(positive ? MOV_DP : MVN_DP, 0, reg, SLJIT_UNUSED, imm1));
|
| 1297 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(positive ? ORR_DP : BIC_DP, 0, reg, reg, imm2));
|
| 1298 |
return 1;
|
| 1299 |
}
|
| 1300 |
#endif
|
| 1301 |
|
| 1302 |
static int load_immediate(struct sljit_compiler *compiler, int reg, sljit_uw imm)
|
| 1303 |
{
|
| 1304 |
sljit_uw tmp;
|
| 1305 |
|
| 1306 |
#if (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7)
|
| 1307 |
if (!(imm & ~0xffff))
|
| 1308 |
return push_inst(compiler, MOVW | RD(reg) | ((imm << 4) & 0xf0000) | (imm & 0xfff));
|
| 1309 |
#endif
|
| 1310 |
|
| 1311 |
/* Create imm by 1 inst. */
|
| 1312 |
tmp = get_immediate(imm);
|
| 1313 |
if (tmp) {
|
| 1314 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, reg, SLJIT_UNUSED, tmp));
|
| 1315 |
return SLJIT_SUCCESS;
|
| 1316 |
}
|
| 1317 |
|
| 1318 |
tmp = get_immediate(~imm);
|
| 1319 |
if (tmp) {
|
| 1320 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MVN_DP, 0, reg, SLJIT_UNUSED, tmp));
|
| 1321 |
return SLJIT_SUCCESS;
|
| 1322 |
}
|
| 1323 |
|
| 1324 |
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
|
| 1325 |
/* Create imm by 2 inst. */
|
| 1326 |
FAIL_IF(generate_int(compiler, reg, imm, 1));
|
| 1327 |
FAIL_IF(generate_int(compiler, reg, ~imm, 0));
|
| 1328 |
|
| 1329 |
/* Load integer. */
|
| 1330 |
return push_inst_with_literal(compiler, EMIT_DATA_TRANSFER(WORD_DATA | LOAD_DATA, 1, 0, reg, TMP_PC, 0), imm);
|
| 1331 |
#else
|
| 1332 |
return emit_imm(compiler, reg, imm);
|
| 1333 |
#endif
|
| 1334 |
}
|
| 1335 |
|
| 1336 |
/* Can perform an operation using at most 1 instruction. */
|
| 1337 |
static int getput_arg_fast(struct sljit_compiler *compiler, int inp_flags, int reg, int arg, sljit_w argw)
|
| 1338 |
{
|
| 1339 |
sljit_uw imm;
|
| 1340 |
|
| 1341 |
if (arg & SLJIT_IMM) {
|
| 1342 |
imm = get_immediate(argw);
|
| 1343 |
if (imm) {
|
| 1344 |
if (inp_flags & ARG_TEST)
|
| 1345 |
return 1;
|
| 1346 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, reg, SLJIT_UNUSED, imm));
|
| 1347 |
return -1;
|
| 1348 |
}
|
| 1349 |
imm = get_immediate(~argw);
|
| 1350 |
if (imm) {
|
| 1351 |
if (inp_flags & ARG_TEST)
|
| 1352 |
return 1;
|
| 1353 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MVN_DP, 0, reg, SLJIT_UNUSED, imm));
|
| 1354 |
return -1;
|
| 1355 |
}
|
| 1356 |
return (inp_flags & ARG_TEST) ? SLJIT_SUCCESS : 0;
|
| 1357 |
}
|
| 1358 |
|
| 1359 |
SLJIT_ASSERT(arg & SLJIT_MEM);
|
| 1360 |
|
| 1361 |
/* Fast loads/stores. */
|
| 1362 |
if (arg & 0xf) {
|
| 1363 |
if (!(arg & 0xf0)) {
|
| 1364 |
if (IS_TYPE1_TRANSFER(inp_flags)) {
|
| 1365 |
if (argw >= 0 && argw <= 0xfff) {
|
| 1366 |
if (inp_flags & ARG_TEST)
|
| 1367 |
return 1;
|
| 1368 |
EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 1, inp_flags & WRITE_BACK, reg, arg & 0xf, argw));
|
| 1369 |
return -1;
|
| 1370 |
}
|
| 1371 |
if (argw < 0 && argw >= -0xfff) {
|
| 1372 |
if (inp_flags & ARG_TEST)
|
| 1373 |
return 1;
|
| 1374 |
EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 0, inp_flags & WRITE_BACK, reg, arg & 0xf, -argw));
|
| 1375 |
return -1;
|
| 1376 |
}
|
| 1377 |
}
|
| 1378 |
else {
|
| 1379 |
if (argw >= 0 && argw <= 0xff) {
|
| 1380 |
if (inp_flags & ARG_TEST)
|
| 1381 |
return 1;
|
| 1382 |
EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 1, inp_flags & WRITE_BACK, reg, arg & 0xf, TYPE2_TRANSFER_IMM(argw)));
|
| 1383 |
return -1;
|
| 1384 |
}
|
| 1385 |
if (argw < 0 && argw >= -0xff) {
|
| 1386 |
if (inp_flags & ARG_TEST)
|
| 1387 |
return 1;
|
| 1388 |
argw = -argw;
|
| 1389 |
EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 0, inp_flags & WRITE_BACK, reg, arg & 0xf, TYPE2_TRANSFER_IMM(argw)));
|
| 1390 |
return -1;
|
| 1391 |
}
|
| 1392 |
}
|
| 1393 |
}
|
| 1394 |
else if ((argw & 0x3) == 0 || IS_TYPE1_TRANSFER(inp_flags)) {
|
| 1395 |
if (inp_flags & ARG_TEST)
|
| 1396 |
return 1;
|
| 1397 |
EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 1, inp_flags & WRITE_BACK, reg, arg & 0xf,
|
| 1398 |
RM((arg >> 4) & 0xf) | (IS_TYPE1_TRANSFER(inp_flags) ? SRC2_IMM : 0) | ((argw & 0x3) << 7)));
|
| 1399 |
return -1;
|
| 1400 |
}
|
| 1401 |
}
|
| 1402 |
|
| 1403 |
return (inp_flags & ARG_TEST) ? SLJIT_SUCCESS : 0;
|
| 1404 |
}
|
| 1405 |
|
| 1406 |
/* See getput_arg below.
|
| 1407 |
Note: can_cache is called only for binary operators. Those
|
| 1408 |
operators always uses word arguments without write back. */
|
| 1409 |
static int can_cache(int arg, sljit_w argw, int next_arg, sljit_w next_argw)
|
| 1410 |
{
|
| 1411 |
/* Immediate caching is not supported as it would be an operation on constant arguments. */
|
| 1412 |
if (arg & SLJIT_IMM)
|
| 1413 |
return 0;
|
| 1414 |
|
| 1415 |
/* Always a simple operation. */
|
| 1416 |
if (arg & 0xf0)
|
| 1417 |
return 0;
|
| 1418 |
|
| 1419 |
if (!(arg & 0xf)) {
|
| 1420 |
/* Immediate access. */
|
| 1421 |
if ((next_arg & SLJIT_MEM) && ((sljit_uw)argw - (sljit_uw)next_argw <= 0xfff || (sljit_uw)next_argw - (sljit_uw)argw <= 0xfff))
|
| 1422 |
return 1;
|
| 1423 |
return 0;
|
| 1424 |
}
|
| 1425 |
|
| 1426 |
if (argw <= 0xfffff && argw >= -0xfffff)
|
| 1427 |
return 0;
|
| 1428 |
|
| 1429 |
if (argw == next_argw && (next_arg & SLJIT_MEM))
|
| 1430 |
return 1;
|
| 1431 |
|
| 1432 |
if (arg == next_arg && ((sljit_uw)argw - (sljit_uw)next_argw <= 0xfff || (sljit_uw)next_argw - (sljit_uw)argw <= 0xfff))
|
| 1433 |
return 1;
|
| 1434 |
|
| 1435 |
return 0;
|
| 1436 |
}
|
| 1437 |
|
| 1438 |
#define GETPUT_ARG_DATA_TRANSFER(add, wb, target, base, imm) \
|
| 1439 |
if (max_delta & 0xf00) \
|
| 1440 |
FAIL_IF(push_inst(compiler, EMIT_DATA_TRANSFER(inp_flags, add, wb, target, base, imm))); \
|
| 1441 |
else \
|
| 1442 |
FAIL_IF(push_inst(compiler, EMIT_DATA_TRANSFER(inp_flags, add, wb, target, base, TYPE2_TRANSFER_IMM(imm))));
|
| 1443 |
|
| 1444 |
#define TEST_WRITE_BACK() \
|
| 1445 |
if (inp_flags & WRITE_BACK) { \
|
| 1446 |
tmp_r = arg & 0xf; \
|
| 1447 |
if (reg == tmp_r) { \
|
| 1448 |
/* This can only happen for stores */ \
|
| 1449 |
/* since ldr reg, [reg, ...]! has no meaning */ \
|
| 1450 |
SLJIT_ASSERT(!(inp_flags & LOAD_DATA)); \
|
| 1451 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, TMP_REG3, SLJIT_UNUSED, RM(reg))); \
|
| 1452 |
reg = TMP_REG3; \
|
| 1453 |
} \
|
| 1454 |
}
|
| 1455 |
|
| 1456 |
/* Emit the necessary instructions. See can_cache above. */
|
| 1457 |
static int getput_arg(struct sljit_compiler *compiler, int inp_flags, int reg, int arg, sljit_w argw, int next_arg, sljit_w next_argw)
|
| 1458 |
{
|
| 1459 |
int tmp_r;
|
| 1460 |
sljit_w max_delta;
|
| 1461 |
sljit_w sign;
|
| 1462 |
|
| 1463 |
if (arg & SLJIT_IMM) {
|
| 1464 |
SLJIT_ASSERT(inp_flags & LOAD_DATA);
|
| 1465 |
return load_immediate(compiler, reg, argw);
|
| 1466 |
}
|
| 1467 |
|
| 1468 |
SLJIT_ASSERT(arg & SLJIT_MEM);
|
| 1469 |
|
| 1470 |
tmp_r = (inp_flags & LOAD_DATA) ? reg : TMP_REG3;
|
| 1471 |
max_delta = IS_TYPE1_TRANSFER(inp_flags) ? 0xfff : 0xff;
|
| 1472 |
|
| 1473 |
if ((arg & 0xf) == SLJIT_UNUSED) {
|
| 1474 |
/* Write back is not used. */
|
| 1475 |
if ((compiler->cache_arg & SLJIT_IMM) && (((sljit_uw)argw - (sljit_uw)compiler->cache_argw) <= (sljit_uw)max_delta || ((sljit_uw)compiler->cache_argw - (sljit_uw)argw) <= (sljit_uw)max_delta)) {
|
| 1476 |
if (((sljit_uw)argw - (sljit_uw)compiler->cache_argw) <= (sljit_uw)max_delta) {
|
| 1477 |
sign = 1;
|
| 1478 |
argw = argw - compiler->cache_argw;
|
| 1479 |
}
|
| 1480 |
else {
|
| 1481 |
sign = 0;
|
| 1482 |
argw = compiler->cache_argw - argw;
|
| 1483 |
}
|
| 1484 |
|
| 1485 |
if (max_delta & 0xf00) {
|
| 1486 |
EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, sign, 0, reg, TMP_REG3, argw));
|
| 1487 |
}
|
| 1488 |
else {
|
| 1489 |
EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, sign, 0, reg, TMP_REG3, TYPE2_TRANSFER_IMM(argw)));
|
| 1490 |
}
|
| 1491 |
return SLJIT_SUCCESS;
|
| 1492 |
}
|
| 1493 |
|
| 1494 |
/* With write back, we can create some sophisticated loads, but
|
| 1495 |
it is hard to decide whether we should convert downward (0s) or upward (1s). */
|
| 1496 |
if ((next_arg & SLJIT_MEM) && ((sljit_uw)argw - (sljit_uw)next_argw <= (sljit_uw)max_delta || (sljit_uw)next_argw - (sljit_uw)argw <= (sljit_uw)max_delta)) {
|
| 1497 |
SLJIT_ASSERT(inp_flags & LOAD_DATA);
|
| 1498 |
|
| 1499 |
compiler->cache_arg = SLJIT_IMM;
|
| 1500 |
compiler->cache_argw = argw;
|
| 1501 |
tmp_r = TMP_REG3;
|
| 1502 |
}
|
| 1503 |
|
| 1504 |
FAIL_IF(load_immediate(compiler, tmp_r, argw));
|
| 1505 |
GETPUT_ARG_DATA_TRANSFER(1, 0, reg, tmp_r, 0);
|
| 1506 |
return SLJIT_SUCCESS;
|
| 1507 |
}
|
| 1508 |
|
| 1509 |
/* Extended imm addressing for [reg+imm] format. */
|
| 1510 |
sign = (max_delta << 8) | 0xff;
|
| 1511 |
if (!(arg & 0xf0) && argw <= sign && argw >= -sign) {
|
| 1512 |
TEST_WRITE_BACK();
|
| 1513 |
if (argw >= 0) {
|
| 1514 |
sign = 1;
|
| 1515 |
}
|
| 1516 |
else {
|
| 1517 |
sign = 0;
|
| 1518 |
argw = -argw;
|
| 1519 |
}
|
| 1520 |
|
| 1521 |
/* Optimization: add is 0x4, sub is 0x2. Sign is 1 for add and 0 for sub. */
|
| 1522 |
if (max_delta & 0xf00)
|
| 1523 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(SUB_DP << sign, 0, tmp_r, arg & 0xf, SRC2_IMM | (argw >> 12) | 0xa00));
|
| 1524 |
else
|
| 1525 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(SUB_DP << sign, 0, tmp_r, arg & 0xf, SRC2_IMM | (argw >> 8) | 0xc00));
|
| 1526 |
|
| 1527 |
argw &= max_delta;
|
| 1528 |
GETPUT_ARG_DATA_TRANSFER(sign, inp_flags & WRITE_BACK, reg, tmp_r, argw);
|
| 1529 |
return SLJIT_SUCCESS;
|
| 1530 |
}
|
| 1531 |
|
| 1532 |
if (arg & 0xf0) {
|
| 1533 |
SLJIT_ASSERT((argw & 0x3) && !(max_delta & 0xf00));
|
| 1534 |
if (inp_flags & WRITE_BACK)
|
| 1535 |
tmp_r = arg & 0xf;
|
| 1536 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(ADD_DP, 0, tmp_r, arg & 0xf, RM((arg >> 4) & 0xf) | ((argw & 0x3) << 7)));
|
| 1537 |
EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 1, 0, reg, tmp_r, TYPE2_TRANSFER_IMM(0)));
|
| 1538 |
return SLJIT_SUCCESS;
|
| 1539 |
}
|
| 1540 |
|
| 1541 |
if (compiler->cache_arg == arg && ((sljit_uw)argw - (sljit_uw)compiler->cache_argw) <= (sljit_uw)max_delta) {
|
| 1542 |
SLJIT_ASSERT(!(inp_flags & WRITE_BACK));
|
| 1543 |
argw = argw - compiler->cache_argw;
|
| 1544 |
GETPUT_ARG_DATA_TRANSFER(1, 0, reg, TMP_REG3, argw);
|
| 1545 |
return SLJIT_SUCCESS;
|
| 1546 |
}
|
| 1547 |
|
| 1548 |
if (compiler->cache_arg == arg && ((sljit_uw)compiler->cache_argw - (sljit_uw)argw) <= (sljit_uw)max_delta) {
|
| 1549 |
SLJIT_ASSERT(!(inp_flags & WRITE_BACK));
|
| 1550 |
argw = compiler->cache_argw - argw;
|
| 1551 |
GETPUT_ARG_DATA_TRANSFER(0, 0, reg, TMP_REG3, argw);
|
| 1552 |
return SLJIT_SUCCESS;
|
| 1553 |
}
|
| 1554 |
|
| 1555 |
if ((compiler->cache_arg & SLJIT_IMM) && compiler->cache_argw == argw) {
|
| 1556 |
TEST_WRITE_BACK();
|
| 1557 |
EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 1, inp_flags & WRITE_BACK, reg, arg & 0xf, RM(TMP_REG3) | (max_delta & 0xf00 ? SRC2_IMM : 0)));
|
| 1558 |
return SLJIT_SUCCESS;
|
| 1559 |
}
|
| 1560 |
|
| 1561 |
if (argw == next_argw && (next_arg & SLJIT_MEM)) {
|
| 1562 |
SLJIT_ASSERT(inp_flags & LOAD_DATA);
|
| 1563 |
FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
|
| 1564 |
|
| 1565 |
compiler->cache_arg = SLJIT_IMM;
|
| 1566 |
compiler->cache_argw = argw;
|
| 1567 |
|
| 1568 |
TEST_WRITE_BACK();
|
| 1569 |
EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 1, inp_flags & WRITE_BACK, reg, arg & 0xf, RM(TMP_REG3) | (max_delta & 0xf00 ? SRC2_IMM : 0)));
|
| 1570 |
return SLJIT_SUCCESS;
|
| 1571 |
}
|
| 1572 |
|
| 1573 |
if (arg == next_arg && !(inp_flags & WRITE_BACK) && ((sljit_uw)argw - (sljit_uw)next_argw <= (sljit_uw)max_delta || (sljit_uw)next_argw - (sljit_uw)argw <= (sljit_uw)max_delta)) {
|
| 1574 |
SLJIT_ASSERT(inp_flags & LOAD_DATA);
|
| 1575 |
FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
|
| 1576 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(ADD_DP, 0, TMP_REG3, TMP_REG3, reg_map[arg & 0xf]));
|
| 1577 |
|
| 1578 |
compiler->cache_arg = arg;
|
| 1579 |
compiler->cache_argw = argw;
|
| 1580 |
|
| 1581 |
GETPUT_ARG_DATA_TRANSFER(1, 0, reg, TMP_REG3, 0);
|
| 1582 |
return SLJIT_SUCCESS;
|
| 1583 |
}
|
| 1584 |
|
| 1585 |
if ((arg & 0xf) == tmp_r) {
|
| 1586 |
compiler->cache_arg = SLJIT_IMM;
|
| 1587 |
compiler->cache_argw = argw;
|
| 1588 |
tmp_r = TMP_REG3;
|
| 1589 |
}
|
| 1590 |
|
| 1591 |
FAIL_IF(load_immediate(compiler, tmp_r, argw));
|
| 1592 |
EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 1, inp_flags & WRITE_BACK, reg, arg & 0xf, reg_map[tmp_r] | (max_delta & 0xf00 ? SRC2_IMM : 0)));
|
| 1593 |
return SLJIT_SUCCESS;
|
| 1594 |
}
|
| 1595 |
|
| 1596 |
static int emit_op(struct sljit_compiler *compiler, int op, int inp_flags,
|
| 1597 |
int dst, sljit_w dstw,
|
| 1598 |
int src1, sljit_w src1w,
|
| 1599 |
int src2, sljit_w src2w)
|
| 1600 |
{
|
| 1601 |
/* arg1 goes to TMP_REG1 or src reg
|
| 1602 |
arg2 goes to TMP_REG2, imm or src reg
|
| 1603 |
TMP_REG3 can be used for caching
|
| 1604 |
result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */
|
| 1605 |
|
| 1606 |
/* We prefers register and simple consts. */
|
| 1607 |
int dst_r;
|
| 1608 |
int src1_r;
|
| 1609 |
int src2_r = 0;
|
| 1610 |
int sugg_src2_r = TMP_REG2;
|
| 1611 |
int flags = GET_FLAGS(op) ? SET_FLAGS : 0;
|
| 1612 |
|
| 1613 |
compiler->cache_arg = 0;
|
| 1614 |
compiler->cache_argw = 0;
|
| 1615 |
|
| 1616 |
/* Destination check. */
|
| 1617 |
if (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REG3) {
|
| 1618 |
dst_r = dst;
|
| 1619 |
flags |= REG_DEST;
|
| 1620 |
if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI)
|
| 1621 |
sugg_src2_r = dst_r;
|
| 1622 |
}
|
| 1623 |
else if (dst == SLJIT_UNUSED) {
|
| 1624 |
if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI && !(src2 & SLJIT_MEM))
|
| 1625 |
return SLJIT_SUCCESS;
|
| 1626 |
dst_r = TMP_REG2;
|
| 1627 |
}
|
| 1628 |
else {
|
| 1629 |
SLJIT_ASSERT(dst & SLJIT_MEM);
|
| 1630 |
if (getput_arg_fast(compiler, inp_flags | ARG_TEST, TMP_REG2, dst, dstw)) {
|
| 1631 |
flags |= FAST_DEST;
|
| 1632 |
dst_r = TMP_REG2;
|
| 1633 |
}
|
| 1634 |
else {
|
| 1635 |
flags |= SLOW_DEST;
|
| 1636 |
dst_r = 0;
|
| 1637 |
}
|
| 1638 |
}
|
| 1639 |
|
| 1640 |
/* Source 1. */
|
| 1641 |
if (src1 >= SLJIT_TEMPORARY_REG1 && src1 <= TMP_REG3)
|
| 1642 |
src1_r = src1;
|
| 1643 |
else if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= TMP_REG3) {
|
| 1644 |
flags |= ARGS_SWAPPED;
|
| 1645 |
src1_r = src2;
|
| 1646 |
src2 = src1;
|
| 1647 |
src2w = src1w;
|
| 1648 |
}
|
| 1649 |
else {
|
| 1650 |
if ((inp_flags & ALLOW_ANY_IMM) && (src1 & SLJIT_IMM)) {
|
| 1651 |
/* The second check will generate a hit. */
|
| 1652 |
src2_r = get_immediate(src1w);
|
| 1653 |
if (src2_r) {
|
| 1654 |
flags |= ARGS_SWAPPED;
|
| 1655 |
src1 = src2;
|
| 1656 |
src1w = src2w;
|
| 1657 |
}
|
| 1658 |
if (inp_flags & ALLOW_INV_IMM) {
|
| 1659 |
src2_r = get_immediate(~src1w);
|
| 1660 |
if (src2_r) {
|
| 1661 |
flags |= ARGS_SWAPPED | INV_IMM;
|
| 1662 |
src1 = src2;
|
| 1663 |
src1w = src2w;
|
| 1664 |
}
|
| 1665 |
}
|
| 1666 |
}
|
| 1667 |
|
| 1668 |
src1_r = 0;
|
| 1669 |
if (getput_arg_fast(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w)) {
|
| 1670 |
FAIL_IF(compiler->error);
|
| 1671 |
src1_r = TMP_REG1;
|
| 1672 |
}
|
| 1673 |
}
|
| 1674 |
|
| 1675 |
/* Source 2. */
|
| 1676 |
if (src2_r == 0) {
|
| 1677 |
if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= TMP_REG3) {
|
| 1678 |
src2_r = src2;
|
| 1679 |
flags |= REG_SOURCE;
|
| 1680 |
if (!(flags & REG_DEST) && op >= SLJIT_MOV && op <= SLJIT_MOVU_SI)
|
| 1681 |
dst_r = src2_r;
|
| 1682 |
}
|
| 1683 |
else do { /* do { } while(0) is used because of breaks. */
|
| 1684 |
if ((inp_flags & ALLOW_ANY_IMM) && (src2 & SLJIT_IMM)) {
|
| 1685 |
src2_r = get_immediate(src2w);
|
| 1686 |
if (src2_r)
|
| 1687 |
break;
|
| 1688 |
if (inp_flags & ALLOW_INV_IMM) {
|
| 1689 |
src2_r = get_immediate(~src2w);
|
| 1690 |
if (src2_r) {
|
| 1691 |
flags |= INV_IMM;
|
| 1692 |
break;
|
| 1693 |
}
|
| 1694 |
}
|
| 1695 |
}
|
| 1696 |
|
| 1697 |
/* src2_r is 0. */
|
| 1698 |
if (getput_arg_fast(compiler, inp_flags | LOAD_DATA, sugg_src2_r, src2, src2w)) {
|
| 1699 |
FAIL_IF(compiler->error);
|
| 1700 |
src2_r = sugg_src2_r;
|
| 1701 |
}
|
| 1702 |
} while (0);
|
| 1703 |
}
|
| 1704 |
|
| 1705 |
/* src1_r, src2_r and dst_r can be zero (=unprocessed) or non-zero.
|
| 1706 |
If they are zero, they must not be registers. */
|
| 1707 |
if (src1_r == 0 && src2_r == 0 && dst_r == 0) {
|
| 1708 |
if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
|
| 1709 |
SLJIT_ASSERT(!(flags & ARGS_SWAPPED));
|
| 1710 |
flags |= ARGS_SWAPPED;
|
| 1711 |
FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src2, src2w, src1, src1w));
|
| 1712 |
FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG2, src1, src1w, dst, dstw));
|
| 1713 |
}
|
| 1714 |
else {
|
| 1715 |
FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w));
|
| 1716 |
FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG2, src2, src2w, dst, dstw));
|
| 1717 |
}
|
| 1718 |
src1_r = TMP_REG1;
|
| 1719 |
src2_r = TMP_REG2;
|
| 1720 |
}
|
| 1721 |
else if (src1_r == 0 && src2_r == 0) {
|
| 1722 |
FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w));
|
| 1723 |
src1_r = TMP_REG1;
|
| 1724 |
}
|
| 1725 |
else if (src1_r == 0 && dst_r == 0) {
|
| 1726 |
FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
|
| 1727 |
src1_r = TMP_REG1;
|
| 1728 |
}
|
| 1729 |
else if (src2_r == 0 && dst_r == 0) {
|
| 1730 |
FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, sugg_src2_r, src2, src2w, dst, dstw));
|
| 1731 |
src2_r = sugg_src2_r;
|
| 1732 |
}
|
| 1733 |
|
| 1734 |
if (dst_r == 0)
|
| 1735 |
dst_r = TMP_REG2;
|
| 1736 |
|
| 1737 |
if (src1_r == 0) {
|
| 1738 |
FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, 0, 0));
|
| 1739 |
src1_r = TMP_REG1;
|
| 1740 |
}
|
| 1741 |
|
| 1742 |
if (src2_r == 0) {
|
| 1743 |
FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, sugg_src2_r, src2, src2w, 0, 0));
|
| 1744 |
src2_r = sugg_src2_r;
|
| 1745 |
}
|
| 1746 |
|
| 1747 |
FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r));
|
| 1748 |
|
| 1749 |
if (flags & (FAST_DEST | SLOW_DEST)) {
|
| 1750 |
if (flags & FAST_DEST)
|
| 1751 |
FAIL_IF(getput_arg_fast(compiler, inp_flags, dst_r, dst, dstw));
|
| 1752 |
else
|
| 1753 |
FAIL_IF(getput_arg(compiler, inp_flags, dst_r, dst, dstw, 0, 0));
|
| 1754 |
}
|
| 1755 |
return SLJIT_SUCCESS;
|
| 1756 |
}
|
| 1757 |
|
| 1758 |
SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op0(struct sljit_compiler *compiler, int op)
|
| 1759 |
{
|
| 1760 |
CHECK_ERROR();
|
| 1761 |
check_sljit_emit_op0(compiler, op);
|
| 1762 |
|
| 1763 |
op = GET_OPCODE(op);
|
| 1764 |
switch (op) {
|
| 1765 |
case SLJIT_BREAKPOINT:
|
| 1766 |
EMIT_INSTRUCTION(DEBUGGER);
|
| 1767 |
break;
|
| 1768 |
case SLJIT_NOP:
|
| 1769 |
EMIT_INSTRUCTION(NOP);
|
| 1770 |
break;
|
| 1771 |
}
|
| 1772 |
|
| 1773 |
return SLJIT_SUCCESS;
|
| 1774 |
}
|
| 1775 |
|
| 1776 |
SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op1(struct sljit_compiler *compiler, int op,
|
| 1777 |
int dst, sljit_w dstw,
|
| 1778 |
int src, sljit_w srcw)
|
| 1779 |
{
|
| 1780 |
CHECK_ERROR();
|
| 1781 |
check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw);
|
| 1782 |
|
| 1783 |
switch (GET_OPCODE(op)) {
|
| 1784 |
case SLJIT_MOV:
|
| 1785 |
case SLJIT_MOV_UI:
|
| 1786 |
case SLJIT_MOV_SI:
|
| 1787 |
return emit_op(compiler, SLJIT_MOV, ALLOW_ANY_IMM, dst, dstw, TMP_REG1, 0, src, srcw);
|
| 1788 |
|
| 1789 |
case SLJIT_MOV_UB:
|
| 1790 |
return emit_op(compiler, SLJIT_MOV_UB, ALLOW_ANY_IMM | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned char)srcw : srcw);
|
| 1791 |
|
| 1792 |
case SLJIT_MOV_SB:
|
| 1793 |
return emit_op(compiler, SLJIT_MOV_SB, ALLOW_ANY_IMM | SIGNED_DATA | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed char)srcw : srcw);
|
| 1794 |
|
| 1795 |
case SLJIT_MOV_UH:
|
| 1796 |
return emit_op(compiler, SLJIT_MOV_UH, ALLOW_ANY_IMM | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned short)srcw : srcw);
|
| 1797 |
|
| 1798 |
case SLJIT_MOV_SH:
|
| 1799 |
return emit_op(compiler, SLJIT_MOV_SH, ALLOW_ANY_IMM | SIGNED_DATA | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed short)srcw : srcw);
|
| 1800 |
|
| 1801 |
case SLJIT_MOVU:
|
| 1802 |
case SLJIT_MOVU_UI:
|
| 1803 |
case SLJIT_MOVU_SI:
|
| 1804 |
return emit_op(compiler, SLJIT_MOV, ALLOW_ANY_IMM | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
|
| 1805 |
|
| 1806 |
case SLJIT_MOVU_UB:
|
| 1807 |
return emit_op(compiler, SLJIT_MOV_UB, ALLOW_ANY_IMM | BYTE_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned char)srcw : srcw);
|
| 1808 |
|
| 1809 |
case SLJIT_MOVU_SB:
|
| 1810 |
return emit_op(compiler, SLJIT_MOV_SB, ALLOW_ANY_IMM | SIGNED_DATA | BYTE_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed char)srcw : srcw);
|
| 1811 |
|
| 1812 |
case SLJIT_MOVU_UH:
|
| 1813 |
return emit_op(compiler, SLJIT_MOV_UH, ALLOW_ANY_IMM | HALF_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned short)srcw : srcw);
|
| 1814 |
|
| 1815 |
case SLJIT_MOVU_SH:
|
| 1816 |
return emit_op(compiler, SLJIT_MOV_SH, ALLOW_ANY_IMM | SIGNED_DATA | HALF_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed short)srcw : srcw);
|
| 1817 |
|
| 1818 |
case SLJIT_NOT:
|
| 1819 |
return emit_op(compiler, op, ALLOW_ANY_IMM, dst, dstw, TMP_REG1, 0, src, srcw);
|
| 1820 |
|
| 1821 |
case SLJIT_NEG:
|
| 1822 |
#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
|
| 1823 |
compiler->skip_checks = 1;
|
| 1824 |
#endif
|
| 1825 |
return sljit_emit_op2(compiler, SLJIT_SUB | GET_FLAGS(op), dst, dstw, SLJIT_IMM, 0, src, srcw);
|
| 1826 |
|
| 1827 |
case SLJIT_CLZ:
|
| 1828 |
return emit_op(compiler, op, 0, dst, dstw, TMP_REG1, 0, src, srcw);
|
| 1829 |
}
|
| 1830 |
|
| 1831 |
return SLJIT_SUCCESS;
|
| 1832 |
}
|
| 1833 |
|
| 1834 |
SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op2(struct sljit_compiler *compiler, int op,
|
| 1835 |
int dst, sljit_w dstw,
|
| 1836 |
int src1, sljit_w src1w,
|
| 1837 |
int src2, sljit_w src2w)
|
| 1838 |
{
|
| 1839 |
CHECK_ERROR();
|
| 1840 |
check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
|
| 1841 |
|
| 1842 |
switch (GET_OPCODE(op)) {
|
| 1843 |
case SLJIT_ADD:
|
| 1844 |
case SLJIT_ADDC:
|
| 1845 |
case SLJIT_SUB:
|
| 1846 |
case SLJIT_SUBC:
|
| 1847 |
case SLJIT_OR:
|
| 1848 |
case SLJIT_XOR:
|
| 1849 |
return emit_op(compiler, op, ALLOW_IMM, dst, dstw, src1, src1w, src2, src2w);
|
| 1850 |
|
| 1851 |
case SLJIT_MUL:
|
| 1852 |
return emit_op(compiler, op, 0, dst, dstw, src1, src1w, src2, src2w);
|
| 1853 |
|
| 1854 |
case SLJIT_AND:
|
| 1855 |
return emit_op(compiler, op, ALLOW_ANY_IMM, dst, dstw, src1, src1w, src2, src2w);
|
| 1856 |
|
| 1857 |
case SLJIT_SHL:
|
| 1858 |
case SLJIT_LSHR:
|
| 1859 |
case SLJIT_ASHR:
|
| 1860 |
if (src2 & SLJIT_IMM) {
|
| 1861 |
compiler->shift_imm = src2w & 0x1f;
|
| 1862 |
return emit_op(compiler, op, 0, dst, dstw, TMP_REG1, 0, src1, src1w);
|
| 1863 |
}
|
| 1864 |
else {
|
| 1865 |
compiler->shift_imm = 0x20;
|
| 1866 |
return emit_op(compiler, op, 0, dst, dstw, src1, src1w, src2, src2w);
|
| 1867 |
}
|
| 1868 |
}
|
| 1869 |
|
| 1870 |
return SLJIT_SUCCESS;
|
| 1871 |
}
|
| 1872 |
|
| 1873 |
/* --------------------------------------------------------------------- */
|
| 1874 |
/* Floating point operators */
|
| 1875 |
/* --------------------------------------------------------------------- */
|
| 1876 |
|
| 1877 |
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
|
| 1878 |
|
| 1879 |
/* 0 - no fpu
|
| 1880 |
1 - vfp */
|
| 1881 |
static int arm_fpu_type = -1;
|
| 1882 |
|
| 1883 |
static void init_compiler()
|
| 1884 |
{
|
| 1885 |
if (arm_fpu_type != -1)
|
| 1886 |
return;
|
| 1887 |
|
| 1888 |
/* TODO: Only the OS can help to determine the correct fpu type. */
|
| 1889 |
arm_fpu_type = 1;
|
| 1890 |
}
|
| 1891 |
|
| 1892 |
SLJIT_API_FUNC_ATTRIBUTE int sljit_is_fpu_available(void)
|
| 1893 |
{
|
| 1894 |
if (arm_fpu_type == -1)
|
| 1895 |
init_compiler();
|
| 1896 |
return arm_fpu_type;
|
| 1897 |
}
|
| 1898 |
|
| 1899 |
#else
|
| 1900 |
|
| 1901 |
#define arm_fpu_type 1
|
| 1902 |
|
| 1903 |
SLJIT_API_FUNC_ATTRIBUTE int sljit_is_fpu_available(void)
|
| 1904 |
{
|
| 1905 |
/* Always available. */
|
| 1906 |
return 1;
|
| 1907 |
}
|
| 1908 |
|
| 1909 |
#endif
|
| 1910 |
|
| 1911 |
#define EMIT_FPU_DATA_TRANSFER(add, load, base, freg, offs) \
|
| 1912 |
(VSTR | ((add) << 23) | ((load) << 20) | (reg_map[base] << 16) | (freg << 12) | (offs))
|
| 1913 |
#define EMIT_FPU_OPERATION(opcode, dst, src1, src2) \
|
| 1914 |
((opcode) | ((dst) << 12) | (src1) | ((src2) << 16))
|
| 1915 |
|
| 1916 |
static int emit_fpu_data_transfer(struct sljit_compiler *compiler, int fpu_reg, int load, int arg, sljit_w argw)
|
| 1917 |
{
|
| 1918 |
SLJIT_ASSERT(arg & SLJIT_MEM);
|
| 1919 |
|
| 1920 |
/* Fast loads and stores. */
|
| 1921 |
if ((arg & 0xf) && !(arg & 0xf0) && (argw & 0x3) == 0) {
|
| 1922 |
if (argw >= 0 && argw <= 0x3ff) {
|
| 1923 |
EMIT_INSTRUCTION(EMIT_FPU_DATA_TRANSFER(1, load, arg & 0xf, fpu_reg, argw >> 2));
|
| 1924 |
return SLJIT_SUCCESS;
|
| 1925 |
}
|
| 1926 |
if (argw < 0 && argw >= -0x3ff) {
|
| 1927 |
EMIT_INSTRUCTION(EMIT_FPU_DATA_TRANSFER(0, load, arg & 0xf, fpu_reg, (-argw) >> 2));
|
| 1928 |
return SLJIT_SUCCESS;
|
| 1929 |
}
|
| 1930 |
if (argw >= 0 && argw <= 0x3ffff) {
|
| 1931 |
SLJIT_ASSERT(get_immediate(argw & 0x3fc00));
|
| 1932 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(ADD_DP, 0, TMP_REG1, arg & 0xf, get_immediate(argw & 0x3fc00)));
|
| 1933 |
argw &= 0x3ff;
|
| 1934 |
EMIT_INSTRUCTION(EMIT_FPU_DATA_TRANSFER(1, load, TMP_REG1, fpu_reg, argw >> 2));
|
| 1935 |
return SLJIT_SUCCESS;
|
| 1936 |
}
|
| 1937 |
if (argw < 0 && argw >= -0x3ffff) {
|
| 1938 |
argw = -argw;
|
| 1939 |
SLJIT_ASSERT(get_immediate(argw & 0x3fc00));
|
| 1940 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(SUB_DP, 0, TMP_REG1, arg & 0xf, get_immediate(argw & 0x3fc00)));
|
| 1941 |
argw &= 0x3ff;
|
| 1942 |
EMIT_INSTRUCTION(EMIT_FPU_DATA_TRANSFER(0, load, TMP_REG1, fpu_reg, argw >> 2));
|
| 1943 |
return SLJIT_SUCCESS;
|
| 1944 |
}
|
| 1945 |
}
|
| 1946 |
|
| 1947 |
if (arg & 0xf0) {
|
| 1948 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(ADD_DP, 0, TMP_REG1, arg & 0xf, RM((arg >> 4) & 0xf) | ((argw & 0x3) << 7)));
|
| 1949 |
EMIT_INSTRUCTION(EMIT_FPU_DATA_TRANSFER(1, load, TMP_REG1, fpu_reg, 0));
|
| 1950 |
return SLJIT_SUCCESS;
|
| 1951 |
}
|
| 1952 |
|
| 1953 |
if (compiler->cache_arg == arg && ((argw - compiler->cache_argw) & 0x3) == 0) {
|
| 1954 |
if (((sljit_uw)argw - (sljit_uw)compiler->cache_argw) <= 0x3ff) {
|
| 1955 |
EMIT_INSTRUCTION(EMIT_FPU_DATA_TRANSFER(1, load, TMP_REG3, fpu_reg, (argw - compiler->cache_argw) >> 2));
|
| 1956 |
return SLJIT_SUCCESS;
|
| 1957 |
}
|
| 1958 |
if (((sljit_uw)compiler->cache_argw - (sljit_uw)argw) <= 0x3ff) {
|
| 1959 |
EMIT_INSTRUCTION(EMIT_FPU_DATA_TRANSFER(0, load, TMP_REG3, fpu_reg, (compiler->cache_argw - argw) >> 2));
|
| 1960 |
return SLJIT_SUCCESS;
|
| 1961 |
}
|
| 1962 |
}
|
| 1963 |
|
| 1964 |
compiler->cache_arg = arg;
|
| 1965 |
compiler->cache_argw = argw;
|
| 1966 |
if (arg & 0xf) {
|
| 1967 |
FAIL_IF(load_immediate(compiler, TMP_REG1, argw));
|
| 1968 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(ADD_DP, 0, TMP_REG3, arg & 0xf, reg_map[TMP_REG1]));
|
| 1969 |
}
|
| 1970 |
else
|
| 1971 |
FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
|
| 1972 |
|
| 1973 |
EMIT_INSTRUCTION(EMIT_FPU_DATA_TRANSFER(1, load, TMP_REG3, fpu_reg, 0));
|
| 1974 |
return SLJIT_SUCCESS;
|
| 1975 |
}
|
| 1976 |
|
| 1977 |
SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop1(struct sljit_compiler *compiler, int op,
|
| 1978 |
int dst, sljit_w dstw,
|
| 1979 |
int src, sljit_w srcw)
|
| 1980 |
{
|
| 1981 |
int dst_freg;
|
| 1982 |
|
| 1983 |
CHECK_ERROR();
|
| 1984 |
check_sljit_emit_fop1(compiler, op, dst, dstw, src, srcw);
|
| 1985 |
|
| 1986 |
compiler->cache_arg = 0;
|
| 1987 |
compiler->cache_argw = 0;
|
| 1988 |
|
| 1989 |
if (GET_OPCODE(op) == SLJIT_FCMP) {
|
| 1990 |
if (dst > SLJIT_FLOAT_REG4) {
|
| 1991 |
FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 1, dst, dstw));
|
| 1992 |
dst = TMP_FREG1;
|
| 1993 |
}
|
| 1994 |
if (src > SLJIT_FLOAT_REG4) {
|
| 1995 |
FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG2, 1, src, srcw));
|
| 1996 |
src = TMP_FREG2;
|
| 1997 |
}
|
| 1998 |
EMIT_INSTRUCTION(VCMP_F64 | (dst << 12) | src);
|
| 1999 |
EMIT_INSTRUCTION(VMRS);
|
| 2000 |
return SLJIT_SUCCESS;
|
| 2001 |
}
|
| 2002 |
|
| 2003 |
dst_freg = (dst > SLJIT_FLOAT_REG4) ? TMP_FREG1 : dst;
|
| 2004 |
|
| 2005 |
if (src > SLJIT_FLOAT_REG4) {
|
| 2006 |
FAIL_IF(emit_fpu_data_transfer(compiler, dst_freg, 1, src, srcw));
|
| 2007 |
src = dst_freg;
|
| 2008 |
}
|
| 2009 |
|
| 2010 |
switch (op) {
|
| 2011 |
case SLJIT_FMOV:
|
| 2012 |
if (src != dst_freg && dst_freg != TMP_FREG1)
|
| 2013 |
EMIT_INSTRUCTION(EMIT_FPU_OPERATION(VMOV_F64, dst_freg, src, 0));
|
| 2014 |
break;
|
| 2015 |
case SLJIT_FNEG:
|
| 2016 |
EMIT_INSTRUCTION(EMIT_FPU_OPERATION(VNEG_F64, dst_freg, src, 0));
|
| 2017 |
break;
|
| 2018 |
case SLJIT_FABS:
|
| 2019 |
EMIT_INSTRUCTION(EMIT_FPU_OPERATION(VABS_F64, dst_freg, src, 0));
|
| 2020 |
break;
|
| 2021 |
}
|
| 2022 |
|
| 2023 |
if (dst_freg == TMP_FREG1)
|
| 2024 |
FAIL_IF(emit_fpu_data_transfer(compiler, src, 0, dst, dstw));
|
| 2025 |
|
| 2026 |
return SLJIT_SUCCESS;
|
| 2027 |
}
|
| 2028 |
|
| 2029 |
SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop2(struct sljit_compiler *compiler, int op,
|
| 2030 |
int dst, sljit_w dstw,
|
| 2031 |
int src1, sljit_w src1w,
|
| 2032 |
int src2, sljit_w src2w)
|
| 2033 |
{
|
| 2034 |
int dst_freg;
|
| 2035 |
|
| 2036 |
CHECK_ERROR();
|
| 2037 |
check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
|
| 2038 |
|
| 2039 |
compiler->cache_arg = 0;
|
| 2040 |
compiler->cache_argw = 0;
|
| 2041 |
|
| 2042 |
dst_freg = (dst > SLJIT_FLOAT_REG4) ? TMP_FREG1 : dst;
|
| 2043 |
|
| 2044 |
if (src2 > SLJIT_FLOAT_REG4) {
|
| 2045 |
FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG2, 1, src2, src2w));
|
| 2046 |
src2 = TMP_FREG2;
|
| 2047 |
}
|
| 2048 |
|
| 2049 |
if (src1 > SLJIT_FLOAT_REG4) {
|
| 2050 |
FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 1, src1, src1w));
|
| 2051 |
src1 = TMP_FREG1;
|
| 2052 |
}
|
| 2053 |
|
| 2054 |
switch (op) {
|
| 2055 |
case SLJIT_FADD:
|
| 2056 |
EMIT_INSTRUCTION(EMIT_FPU_OPERATION(VADD_F64, dst_freg, src2, src1));
|
| 2057 |
break;
|
| 2058 |
|
| 2059 |
case SLJIT_FSUB:
|
| 2060 |
EMIT_INSTRUCTION(EMIT_FPU_OPERATION(VSUB_F64, dst_freg, src2, src1));
|
| 2061 |
break;
|
| 2062 |
|
| 2063 |
case SLJIT_FMUL:
|
| 2064 |
EMIT_INSTRUCTION(EMIT_FPU_OPERATION(VMUL_F64, dst_freg, src2, src1));
|
| 2065 |
break;
|
| 2066 |
|
| 2067 |
case SLJIT_FDIV:
|
| 2068 |
EMIT_INSTRUCTION(EMIT_FPU_OPERATION(VDIV_F64, dst_freg, src2, src1));
|
| 2069 |
break;
|
| 2070 |
}
|
| 2071 |
|
| 2072 |
if (dst_freg == TMP_FREG1)
|
| 2073 |
FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 0, dst, dstw));
|
| 2074 |
|
| 2075 |
return SLJIT_SUCCESS;
|
| 2076 |
}
|
| 2077 |
|
| 2078 |
/* --------------------------------------------------------------------- */
|
| 2079 |
/* Other instructions */
|
| 2080 |
/* --------------------------------------------------------------------- */
|
| 2081 |
|
| 2082 |
SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_enter(struct sljit_compiler *compiler, int dst, sljit_w dstw, int args, int temporaries, int generals, int local_size)
|
| 2083 |
{
|
| 2084 |
int size;
|
| 2085 |
|
| 2086 |
CHECK_ERROR();
|
| 2087 |
check_sljit_emit_fast_enter(compiler, dst, dstw, args, temporaries, generals, local_size);
|
| 2088 |
|
| 2089 |
compiler->temporaries = temporaries;
|
| 2090 |
compiler->generals = generals;
|
| 2091 |
|
| 2092 |
size = (1 + generals) * sizeof(sljit_uw);
|
| 2093 |
if (temporaries >= 4)
|
| 2094 |
size += (temporaries - 3) * sizeof(sljit_uw);
|
| 2095 |
local_size += size;
|
| 2096 |
local_size = (local_size + 7) & ~7;
|
| 2097 |
local_size -= size;
|
| 2098 |
compiler->local_size = local_size;
|
| 2099 |
|
| 2100 |
if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS)
|
| 2101 |
return push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, 0, dst, SLJIT_UNUSED, RM(TMP_REG3)));
|
| 2102 |
else if (dst & SLJIT_MEM) {
|
| 2103 |
if (getput_arg_fast(compiler, WORD_DATA, TMP_REG3, dst, dstw))
|
| 2104 |
return compiler->error;
|
| 2105 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, TMP_REG2, SLJIT_UNUSED, RM(TMP_REG3)));
|
| 2106 |
compiler->cache_arg = 0;
|
| 2107 |
compiler->cache_argw = 0;
|
| 2108 |
return getput_arg(compiler, WORD_DATA, TMP_REG2, dst, dstw, 0, 0);
|
| 2109 |
}
|
| 2110 |
|
| 2111 |
return SLJIT_SUCCESS;
|
| 2112 |
}
|
| 2113 |
|
| 2114 |
SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_return(struct sljit_compiler *compiler, int src, sljit_w srcw)
|
| 2115 |
{
|
| 2116 |
CHECK_ERROR();
|
| 2117 |
check_sljit_emit_fast_return(compiler, src, srcw);
|
| 2118 |
|
| 2119 |
if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS)
|
| 2120 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, TMP_REG3, SLJIT_UNUSED, RM(src)));
|
| 2121 |
else if (src & SLJIT_MEM) {
|
| 2122 |
if (getput_arg_fast(compiler, WORD_DATA | LOAD_DATA, TMP_REG3, src, srcw))
|
| 2123 |
FAIL_IF(compiler->error);
|
| 2124 |
else {
|
| 2125 |
compiler->cache_arg = 0;
|
| 2126 |
compiler->cache_argw = 0;
|
| 2127 |
FAIL_IF(getput_arg(compiler, WORD_DATA | LOAD_DATA, TMP_REG2, src, srcw, 0, 0));
|
| 2128 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, TMP_REG3, SLJIT_UNUSED, RM(TMP_REG2)));
|
| 2129 |
}
|
| 2130 |
}
|
| 2131 |
else if (src & SLJIT_IMM)
|
| 2132 |
FAIL_IF(load_immediate(compiler, TMP_REG3, srcw));
|
| 2133 |
return push_inst(compiler, BLX | RM(TMP_REG3));
|
| 2134 |
}
|
| 2135 |
|
| 2136 |
/* --------------------------------------------------------------------- */
|
| 2137 |
/* Conditional instructions */
|
| 2138 |
/* --------------------------------------------------------------------- */
|
| 2139 |
|
| 2140 |
static sljit_uw get_cc(int type)
|
| 2141 |
{
|
| 2142 |
switch (type) {
|
| 2143 |
case SLJIT_C_EQUAL:
|
| 2144 |
case SLJIT_C_MUL_NOT_OVERFLOW:
|
| 2145 |
case SLJIT_C_FLOAT_EQUAL:
|
| 2146 |
return 0x00000000;
|
| 2147 |
|
| 2148 |
case SLJIT_C_NOT_EQUAL:
|
| 2149 |
case SLJIT_C_MUL_OVERFLOW:
|
| 2150 |
case SLJIT_C_FLOAT_NOT_EQUAL:
|
| 2151 |
return 0x10000000;
|
| 2152 |
|
| 2153 |
case SLJIT_C_LESS:
|
| 2154 |
case SLJIT_C_FLOAT_LESS:
|
| 2155 |
return 0x30000000;
|
| 2156 |
|
| 2157 |
case SLJIT_C_GREATER_EQUAL:
|
| 2158 |
case SLJIT_C_FLOAT_GREATER_EQUAL:
|
| 2159 |
return 0x20000000;
|
| 2160 |
|
| 2161 |
case SLJIT_C_GREATER:
|
| 2162 |
case SLJIT_C_FLOAT_GREATER:
|
| 2163 |
return 0x80000000;
|
| 2164 |
|
| 2165 |
case SLJIT_C_LESS_EQUAL:
|
| 2166 |
case SLJIT_C_FLOAT_LESS_EQUAL:
|
| 2167 |
return 0x90000000;
|
| 2168 |
|
| 2169 |
case SLJIT_C_SIG_LESS:
|
| 2170 |
return 0xb0000000;
|
| 2171 |
|
| 2172 |
case SLJIT_C_SIG_GREATER_EQUAL:
|
| 2173 |
return 0xa0000000;
|
| 2174 |
|
| 2175 |
case SLJIT_C_SIG_GREATER:
|
| 2176 |
return 0xc0000000;
|
| 2177 |
|
| 2178 |
case SLJIT_C_SIG_LESS_EQUAL:
|
| 2179 |
return 0xd0000000;
|
| 2180 |
|
| 2181 |
case SLJIT_C_OVERFLOW:
|
| 2182 |
case SLJIT_C_FLOAT_NAN:
|
| 2183 |
return 0x60000000;
|
| 2184 |
|
| 2185 |
case SLJIT_C_NOT_OVERFLOW:
|
| 2186 |
case SLJIT_C_FLOAT_NOT_NAN:
|
| 2187 |
return 0x70000000;
|
| 2188 |
|
| 2189 |
default: /* SLJIT_JUMP */
|
| 2190 |
return 0xe0000000;
|
| 2191 |
}
|
| 2192 |
}
|
| 2193 |
|
| 2194 |
SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
|
| 2195 |
{
|
| 2196 |
struct sljit_label *label;
|
| 2197 |
|
| 2198 |
CHECK_ERROR_PTR();
|
| 2199 |
check_sljit_emit_label(compiler);
|
| 2200 |
|
| 2201 |
if (compiler->last_label && compiler->last_label->size == compiler->size)
|
| 2202 |
return compiler->last_label;
|
| 2203 |
|
| 2204 |
label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
|
| 2205 |
PTR_FAIL_IF(!label);
|
| 2206 |
set_label(label, compiler);
|
| 2207 |
return label;
|
| 2208 |
}
|
| 2209 |
|
| 2210 |
SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, int type)
|
| 2211 |
{
|
| 2212 |
struct sljit_jump *jump;
|
| 2213 |
|
| 2214 |
CHECK_ERROR_PTR();
|
| 2215 |
check_sljit_emit_jump(compiler, type);
|
| 2216 |
|
| 2217 |
jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
|
| 2218 |
PTR_FAIL_IF(!jump);
|
| 2219 |
set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
|
| 2220 |
type &= 0xff;
|
| 2221 |
|
| 2222 |
/* In ARM, we don't need to touch the arguments. */
|
| 2223 |
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
|
| 2224 |
if (type >= SLJIT_FAST_CALL)
|
| 2225 |
PTR_FAIL_IF(prepare_blx(compiler));
|
| 2226 |
PTR_FAIL_IF(push_inst_with_unique_literal(compiler, ((EMIT_DATA_TRANSFER(WORD_DATA | LOAD_DATA, 1, 0,
|
| 2227 |
type <= SLJIT_JUMP ? TMP_PC : TMP_REG1, TMP_PC, 0)) & ~COND_MASK) | get_cc(type), 0));
|
| 2228 |
|
| 2229 |
if (jump->flags & SLJIT_REWRITABLE_JUMP) {
|
| 2230 |
jump->addr = compiler->size;
|
| 2231 |
compiler->patches++;
|
| 2232 |
}
|
| 2233 |
|
| 2234 |
if (type >= SLJIT_FAST_CALL) {
|
| 2235 |
jump->flags |= IS_BL;
|
| 2236 |
PTR_FAIL_IF(emit_blx(compiler));
|
| 2237 |
}
|
| 2238 |
|
| 2239 |
if (!(jump->flags & SLJIT_REWRITABLE_JUMP))
|
| 2240 |
jump->addr = compiler->size;
|
| 2241 |
#else
|
| 2242 |
if (type >= SLJIT_FAST_CALL)
|
| 2243 |
jump->flags |= IS_BL;
|
| 2244 |
PTR_FAIL_IF(emit_imm(compiler, TMP_REG1, 0));
|
| 2245 |
PTR_FAIL_IF(push_inst(compiler, (((type <= SLJIT_JUMP ? BX : BLX) | RM(TMP_REG1)) & ~COND_MASK) | get_cc(type)));
|
| 2246 |
jump->addr = compiler->size;
|
| 2247 |
#endif
|
| 2248 |
return jump;
|
| 2249 |
}
|
| 2250 |
|
| 2251 |
SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_ijump(struct sljit_compiler *compiler, int type, int src, sljit_w srcw)
|
| 2252 |
{
|
| 2253 |
struct sljit_jump *jump;
|
| 2254 |
|
| 2255 |
CHECK_ERROR();
|
| 2256 |
check_sljit_emit_ijump(compiler, type, src, srcw);
|
| 2257 |
|
| 2258 |
/* In ARM, we don't need to touch the arguments. */
|
| 2259 |
if (src & SLJIT_IMM) {
|
| 2260 |
jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
|
| 2261 |
FAIL_IF(!jump);
|
| 2262 |
set_jump(jump, compiler, JUMP_ADDR | ((type >= SLJIT_FAST_CALL) ? IS_BL : 0));
|
| 2263 |
jump->u.target = srcw;
|
| 2264 |
|
| 2265 |
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
|
| 2266 |
if (type >= SLJIT_FAST_CALL)
|
| 2267 |
FAIL_IF(prepare_blx(compiler));
|
| 2268 |
FAIL_IF(push_inst_with_unique_literal(compiler, EMIT_DATA_TRANSFER(WORD_DATA | LOAD_DATA, 1, 0, type <= SLJIT_JUMP ? TMP_PC : TMP_REG1, TMP_PC, 0), 0));
|
| 2269 |
if (type >= SLJIT_FAST_CALL)
|
| 2270 |
FAIL_IF(emit_blx(compiler));
|
| 2271 |
#else
|
| 2272 |
FAIL_IF(emit_imm(compiler, TMP_REG1, 0));
|
| 2273 |
FAIL_IF(push_inst(compiler, (type <= SLJIT_JUMP ? BX : BLX) | RM(TMP_REG1)));
|
| 2274 |
#endif
|
| 2275 |
jump->addr = compiler->size;
|
| 2276 |
}
|
| 2277 |
else {
|
| 2278 |
if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS)
|
| 2279 |
return push_inst(compiler, (type <= SLJIT_JUMP ? BX : BLX) | RM(src));
|
| 2280 |
|
| 2281 |
SLJIT_ASSERT(src & SLJIT_MEM);
|
| 2282 |
FAIL_IF(emit_op(compiler, SLJIT_MOV, ALLOW_ANY_IMM, TMP_REG2, 0, TMP_REG1, 0, src, srcw));
|
| 2283 |
return push_inst(compiler, (type <= SLJIT_JUMP ? BX : BLX) | RM(TMP_REG2));
|
| 2284 |
}
|
| 2285 |
|
| 2286 |
return SLJIT_SUCCESS;
|
| 2287 |
}
|
| 2288 |
|
| 2289 |
SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_cond_value(struct sljit_compiler *compiler, int op, int dst, sljit_w dstw, int type)
|
| 2290 |
{
|
| 2291 |
int reg;
|
| 2292 |
sljit_uw cc;
|
| 2293 |
|
| 2294 |
CHECK_ERROR();
|
| 2295 |
check_sljit_emit_cond_value(compiler, op, dst, dstw, type);
|
| 2296 |
|
| 2297 |
if (dst == SLJIT_UNUSED)
|
| 2298 |
return SLJIT_SUCCESS;
|
| 2299 |
|
| 2300 |
cc = get_cc(type);
|
| 2301 |
if (GET_OPCODE(op) == SLJIT_OR) {
|
| 2302 |
if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) {
|
| 2303 |
EMIT_INSTRUCTION((EMIT_DATA_PROCESS_INS(ORR_DP, 0, dst, dst, SRC2_IMM | 1) & ~COND_MASK) | cc);
|
| 2304 |
if (op & SLJIT_SET_E)
|
| 2305 |
return push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, SET_FLAGS, TMP_REG1, SLJIT_UNUSED, RM(dst)));
|
| 2306 |
return SLJIT_SUCCESS;
|
| 2307 |
}
|
| 2308 |
|
| 2309 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, TMP_REG1, SLJIT_UNUSED, SRC2_IMM | 0));
|
| 2310 |
EMIT_INSTRUCTION((EMIT_DATA_PROCESS_INS(MOV_DP, 0, TMP_REG1, SLJIT_UNUSED, SRC2_IMM | 1) & ~COND_MASK) | cc);
|
| 2311 |
#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
|
| 2312 |
compiler->skip_checks = 1;
|
| 2313 |
#endif
|
| 2314 |
return emit_op(compiler, op, ALLOW_IMM, dst, dstw, TMP_REG1, 0, dst, dstw);
|
| 2315 |
}
|
| 2316 |
|
| 2317 |
reg = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG2;
|
| 2318 |
|
| 2319 |
EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, reg, SLJIT_UNUSED, SRC2_IMM | 0));
|
| 2320 |
EMIT_INSTRUCTION((EMIT_DATA_PROCESS_INS(MOV_DP, 0, reg, SLJIT_UNUSED, SRC2_IMM | 1) & ~COND_MASK) | cc);
|
| 2321 |
|
| 2322 |
if (reg == TMP_REG2)
|
| 2323 |
return emit_op(compiler, SLJIT_MOV, ALLOW_ANY_IMM, dst, dstw, TMP_REG1, 0, TMP_REG2, 0);
|
| 2324 |
return SLJIT_SUCCESS;
|
| 2325 |
}
|
| 2326 |
|
| 2327 |
SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w init_value)
|
| 2328 |
{
|
| 2329 |
struct sljit_const *const_;
|
| 2330 |
int reg;
|
| 2331 |
|
| 2332 |
CHECK_ERROR_PTR();
|
| 2333 |
check_sljit_emit_const(compiler, dst, dstw, init_value);
|
| 2334 |
|
| 2335 |
const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
|
| 2336 |
PTR_FAIL_IF(!const_);
|
| 2337 |
|
| 2338 |
reg = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG2;
|
| 2339 |
|
| 2340 |
#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
|
| 2341 |
PTR_FAIL_IF(push_inst_with_unique_literal(compiler, EMIT_DATA_TRANSFER(WORD_DATA | LOAD_DATA, 1, 0, reg, TMP_PC, 0), init_value));
|
| 2342 |
compiler->patches++;
|
| 2343 |
#else
|
| 2344 |
PTR_FAIL_IF(emit_imm(compiler, reg, init_value));
|
| 2345 |
#endif
|
| 2346 |
set_const(const_, compiler);
|
| 2347 |
|
| 2348 |
if (reg == TMP_REG2 && dst != SLJIT_UNUSED)
|
| 2349 |
if (emit_op(compiler, SLJIT_MOV, ALLOW_ANY_IMM, dst, dstw, TMP_REG1, 0, TMP_REG2, 0))
|
| 2350 |
return NULL;
|
| 2351 |
return const_;
|
| 2352 |
}
|
| 2353 |
|
| 2354 |
SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_addr)
|
| 2355 |
{
|
| 2356 |
inline_set_jump_addr(addr, new_addr, 1);
|
| 2357 |
}
|
| 2358 |
|
| 2359 |
SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_w new_constant)
|
| 2360 |
{
|
| 2361 |
inline_set_const(addr, new_constant, 1);
|
| 2362 |
}
|
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